161938140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:281

約数の個数: 288

約数和(自身を含む): 600606720

約数和(自身を除く): 438668580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 35, 38, 39, 42, 49, 52, 57, 60, 65, 70, 76, 78, 84, 91, 95, 98, 105, 114, 130, 133, 140, 147, 156, 182, 190, 195, 196, 210, 223, 228, 245, 247, 260, 266, 273, 285, 294, 364, 380, 390, 399, 420, 446, 455, 490, 494, 532, 546, 570, 588, 637, 665, 669, 735, 741, 780, 798, 892, 910, 931, 980, 988, 1092, 1115, 1140, 1235, 1274, 1330, 1338, 1365, 1470, 1482, 1561, 1596, 1729, 1820, 1862, 1911, 1995, 2230, 2470, 2548, 2660, 2676, 2730, 2793, 2899, 2940, 2964, 3122, 3185, 3345, 3458, 3705, 3724, 3822, 3990, 4237, 4460, 4655, 4683, 4940, 5187, 5460, 5586, 5798, 6244, 6370, 6690, 6916, 7410, 7644, 7805, 7980, 8474, 8645, 8697, 9310, 9366, 9555, 10374, 10927, 11172, 11596, 12103, 12711, 12740, 13380, 13965, 14495, 14820, 15610, 16948, 17290, 17394, 18620, 18732, 19110, 20293, 20748, 21185, 21854, 23415, 24206, 25422, 25935, 27930, 28990, 29659, 31220, 32781, 34580, 34788, 36309, 38220, 40586, 42370, 43485, 43708, 46830, 48412, 50844, 51870, 54635, 55081, 55860, 57980, 59318, 60515, 60879, 63555, 65562, 72618, 81172, 84740, 86970, 88977, 93660, 101465, 103740, 109270, 110162, 118636, 121030, 121758, 127110, 131124, 142051, 145236, 148295, 163905, 165243, 173940, 177954, 181545, 202930, 207613, 218540, 220324, 242060, 243516, 254220, 275405, 284102, 296590, 304395, 327810, 330486, 355908, 363090, 385567, 405860, 415226, 426153, 444885, 550810, 568204, 593180, 608790, 622839, 655620, 660972, 710255, 726180, 771134, 826215, 830452, 852306, 889770, 1038065, 1101620, 1156701, 1217580, 1245678, 1420510, 1542268, 1652430, 1704612, 1779540, 1927835, 2076130, 2130765, 2313402, 2491356, 2698969, 2841020, 3114195, 3304860, 3855670, 4152260, 4261530, 4626804, 5397938, 5783505, 6228390, 7711340, 8096907, 8523060, 10795876, 11567010, 12456780, 13494845, 16193814, 23134020, 26989690, 32387628, 40484535, 53979380, 80969070, 161938140]

約数ペア:

[(1, 161938140), (2, 80969070), (3, 53979380), (4, 40484535), (5, 32387628), (6, 26989690), (7, 23134020), (10, 16193814), (12, 13494845), (13, 12456780), (14, 11567010), (15, 10795876), (19, 8523060), (20, 8096907), (21, 7711340), (26, 6228390), (28, 5783505), (30, 5397938), (35, 4626804), (38, 4261530), (39, 4152260), (42, 3855670), (49, 3304860), (52, 3114195), (57, 2841020), (60, 2698969), (65, 2491356), (70, 2313402), (76, 2130765), (78, 2076130), (84, 1927835), (91, 1779540), (95, 1704612), (98, 1652430), (105, 1542268), (114, 1420510), (130, 1245678), (133, 1217580), (140, 1156701), (147, 1101620), (156, 1038065), (182, 889770), (190, 852306), (195, 830452), (196, 826215), (210, 771134), (223, 726180), (228, 710255), (245, 660972), (247, 655620), (260, 622839), (266, 608790), (273, 593180), (285, 568204), (294, 550810), (364, 444885), (380, 426153), (390, 415226), (399, 405860), (420, 385567), (446, 363090), (455, 355908), (490, 330486), (494, 327810), (532, 304395), (546, 296590), (570, 284102), (588, 275405), (637, 254220), (665, 243516), (669, 242060), (735, 220324), (741, 218540), (780, 207613), (798, 202930), (892, 181545), (910, 177954), (931, 173940), (980, 165243), (988, 163905), (1092, 148295), (1115, 145236), (1140, 142051), (1235, 131124), (1274, 127110), (1330, 121758), (1338, 121030), (1365, 118636), (1470, 110162), (1482, 109270), (1561, 103740), (1596, 101465), (1729, 93660), (1820, 88977), (1862, 86970), (1911, 84740), (1995, 81172), (2230, 72618), (2470, 65562), (2548, 63555), (2660, 60879), (2676, 60515), (2730, 59318), (2793, 57980), (2899, 55860), (2940, 55081), (2964, 54635), (3122, 51870), (3185, 50844), (3345, 48412), (3458, 46830), (3705, 43708), (3724, 43485), (3822, 42370), (3990, 40586), (4237, 38220), (4460, 36309), (4655, 34788), (4683, 34580), (4940, 32781), (5187, 31220), (5460, 29659), (5586, 28990), (5798, 27930), (6244, 25935), (6370, 25422), (6690, 24206), (6916, 23415), (7410, 21854), (7644, 21185), (7805, 20748), (7980, 20293), (8474, 19110), (8645, 18732), (8697, 18620), (9310, 17394), (9366, 17290), (9555, 16948), (10374, 15610), (10927, 14820), (11172, 14495), (11596, 13965), (12103, 13380), (12711, 12740)]