19767720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:355

約数の個数: 128

約数和(自身を含む): 68739840

約数和(自身を除く): 48972120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 101, 105, 120, 140, 168, 202, 210, 233, 280, 303, 404, 420, 466, 505, 606, 699, 707, 808, 840, 932, 1010, 1165, 1212, 1398, 1414, 1515, 1631, 1864, 2020, 2121, 2330, 2424, 2796, 2828, 3030, 3262, 3495, 3535, 4040, 4242, 4660, 4893, 5592, 5656, 6060, 6524, 6990, 7070, 8155, 8484, 9320, 9786, 10605, 12120, 13048, 13980, 14140, 16310, 16968, 19572, 21210, 23533, 24465, 27960, 28280, 32620, 39144, 42420, 47066, 48930, 65240, 70599, 84840, 94132, 97860, 117665, 141198, 164731, 188264, 195720, 235330, 282396, 329462, 352995, 470660, 494193, 564792, 658924, 705990, 823655, 941320, 988386, 1317848, 1411980, 1647310, 1976772, 2470965, 2823960, 3294620, 3953544, 4941930, 6589240, 9883860, 19767720]

約数ペア:

[(1, 19767720), (2, 9883860), (3, 6589240), (4, 4941930), (5, 3953544), (6, 3294620), (7, 2823960), (8, 2470965), (10, 1976772), (12, 1647310), (14, 1411980), (15, 1317848), (20, 988386), (21, 941320), (24, 823655), (28, 705990), (30, 658924), (35, 564792), (40, 494193), (42, 470660), (56, 352995), (60, 329462), (70, 282396), (84, 235330), (101, 195720), (105, 188264), (120, 164731), (140, 141198), (168, 117665), (202, 97860), (210, 94132), (233, 84840), (280, 70599), (303, 65240), (404, 48930), (420, 47066), (466, 42420), (505, 39144), (606, 32620), (699, 28280), (707, 27960), (808, 24465), (840, 23533), (932, 21210), (1010, 19572), (1165, 16968), (1212, 16310), (1398, 14140), (1414, 13980), (1515, 13048), (1631, 12120), (1864, 10605), (2020, 9786), (2121, 9320), (2330, 8484), (2424, 8155), (2796, 7070), (2828, 6990), (3030, 6524), (3262, 6060), (3495, 5656), (3535, 5592), (4040, 4893), (4242, 4660)]