81569460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:266

約数の個数: 192

約数和(自身を含む): 278853120

約数和(自身を除く): 197283660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 37, 42, 58, 60, 70, 74, 84, 87, 105, 111, 116, 140, 145, 148, 174, 181, 185, 203, 210, 222, 259, 290, 348, 362, 370, 406, 420, 435, 444, 518, 543, 555, 580, 609, 724, 740, 777, 812, 870, 905, 1015, 1036, 1073, 1086, 1110, 1218, 1267, 1295, 1554, 1740, 1810, 2030, 2146, 2172, 2220, 2436, 2534, 2590, 2715, 3045, 3108, 3219, 3620, 3801, 3885, 4060, 4292, 5068, 5180, 5249, 5365, 5430, 6090, 6335, 6438, 6697, 7511, 7602, 7770, 10498, 10730, 10860, 12180, 12670, 12876, 13394, 15022, 15204, 15540, 15747, 16095, 19005, 20091, 20996, 21460, 22533, 25340, 26245, 26788, 30044, 31494, 32190, 33485, 36743, 37555, 38010, 40182, 45066, 46879, 52490, 62988, 64380, 66970, 73486, 75110, 76020, 78735, 80364, 90132, 93758, 100455, 104980, 110229, 112665, 133940, 140637, 146972, 150220, 157470, 183715, 187516, 194213, 200910, 220458, 225330, 234395, 281274, 314940, 367430, 388426, 401820, 440916, 450660, 468790, 551145, 562548, 582639, 703185, 734860, 776852, 937580, 971065, 1102290, 1165278, 1359491, 1406370, 1942130, 2204580, 2330556, 2718982, 2812740, 2913195, 3884260, 4078473, 5437964, 5826390, 6797455, 8156946, 11652780, 13594910, 16313892, 20392365, 27189820, 40784730, 81569460]

約数ペア:

[(1, 81569460), (2, 40784730), (3, 27189820), (4, 20392365), (5, 16313892), (6, 13594910), (7, 11652780), (10, 8156946), (12, 6797455), (14, 5826390), (15, 5437964), (20, 4078473), (21, 3884260), (28, 2913195), (29, 2812740), (30, 2718982), (35, 2330556), (37, 2204580), (42, 1942130), (58, 1406370), (60, 1359491), (70, 1165278), (74, 1102290), (84, 971065), (87, 937580), (105, 776852), (111, 734860), (116, 703185), (140, 582639), (145, 562548), (148, 551145), (174, 468790), (181, 450660), (185, 440916), (203, 401820), (210, 388426), (222, 367430), (259, 314940), (290, 281274), (348, 234395), (362, 225330), (370, 220458), (406, 200910), (420, 194213), (435, 187516), (444, 183715), (518, 157470), (543, 150220), (555, 146972), (580, 140637), (609, 133940), (724, 112665), (740, 110229), (777, 104980), (812, 100455), (870, 93758), (905, 90132), (1015, 80364), (1036, 78735), (1073, 76020), (1086, 75110), (1110, 73486), (1218, 66970), (1267, 64380), (1295, 62988), (1554, 52490), (1740, 46879), (1810, 45066), (2030, 40182), (2146, 38010), (2172, 37555), (2220, 36743), (2436, 33485), (2534, 32190), (2590, 31494), (2715, 30044), (3045, 26788), (3108, 26245), (3219, 25340), (3620, 22533), (3801, 21460), (3885, 20996), (4060, 20091), (4292, 19005), (5068, 16095), (5180, 15747), (5249, 15540), (5365, 15204), (5430, 15022), (6090, 13394), (6335, 12876), (6438, 12670), (6697, 12180), (7511, 10860), (7602, 10730), (7770, 10498)]