19122740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 144

約数和(自身を含む): 53625600

約数和(自身を除く): 34502860

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 49, 52, 65, 70, 76, 79, 91, 95, 98, 130, 133, 140, 158, 182, 190, 196, 245, 247, 260, 266, 316, 364, 380, 395, 455, 490, 494, 532, 553, 637, 665, 790, 910, 931, 980, 988, 1027, 1106, 1235, 1274, 1330, 1501, 1580, 1729, 1820, 1862, 2054, 2212, 2470, 2548, 2660, 2765, 3002, 3185, 3458, 3724, 3871, 4108, 4655, 4940, 5135, 5530, 6004, 6370, 6916, 7189, 7505, 7742, 8645, 9310, 10270, 10507, 11060, 12103, 12740, 14378, 15010, 15484, 17290, 18620, 19355, 19513, 20540, 21014, 24206, 28756, 30020, 34580, 35945, 38710, 39026, 42028, 48412, 50323, 52535, 60515, 71890, 73549, 77420, 78052, 97565, 100646, 105070, 121030, 136591, 143780, 147098, 195130, 201292, 210140, 242060, 251615, 273182, 294196, 367745, 390260, 503230, 546364, 682955, 735490, 956137, 1006460, 1365910, 1470980, 1912274, 2731820, 3824548, 4780685, 9561370, 19122740]

約数ペア:

[(1, 19122740), (2, 9561370), (4, 4780685), (5, 3824548), (7, 2731820), (10, 1912274), (13, 1470980), (14, 1365910), (19, 1006460), (20, 956137), (26, 735490), (28, 682955), (35, 546364), (38, 503230), (49, 390260), (52, 367745), (65, 294196), (70, 273182), (76, 251615), (79, 242060), (91, 210140), (95, 201292), (98, 195130), (130, 147098), (133, 143780), (140, 136591), (158, 121030), (182, 105070), (190, 100646), (196, 97565), (245, 78052), (247, 77420), (260, 73549), (266, 71890), (316, 60515), (364, 52535), (380, 50323), (395, 48412), (455, 42028), (490, 39026), (494, 38710), (532, 35945), (553, 34580), (637, 30020), (665, 28756), (790, 24206), (910, 21014), (931, 20540), (980, 19513), (988, 19355), (1027, 18620), (1106, 17290), (1235, 15484), (1274, 15010), (1330, 14378), (1501, 12740), (1580, 12103), (1729, 11060), (1820, 10507), (1862, 10270), (2054, 9310), (2212, 8645), (2470, 7742), (2548, 7505), (2660, 7189), (2765, 6916), (3002, 6370), (3185, 6004), (3458, 5530), (3724, 5135), (3871, 4940), (4108, 4655)]