72474740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:921

約数の個数: 96

約数和(自身を含む): 182891520

約数和(自身を除く): 110416780

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 130, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 646, 863, 884, 988, 1105, 1235, 1292, 1615, 1726, 2210, 2470, 3230, 3452, 4199, 4315, 4420, 4940, 6460, 8398, 8630, 11219, 14671, 16397, 16796, 17260, 20995, 22438, 29342, 32794, 41990, 44876, 56095, 58684, 65588, 73355, 81985, 83980, 112190, 146710, 163970, 190723, 213161, 224380, 278749, 293420, 327940, 381446, 426322, 557498, 762892, 852644, 953615, 1065805, 1114996, 1393745, 1907230, 2131610, 2787490, 3623737, 3814460, 4263220, 5574980, 7247474, 14494948, 18118685, 36237370, 72474740]

約数ペア:

[(1, 72474740), (2, 36237370), (4, 18118685), (5, 14494948), (10, 7247474), (13, 5574980), (17, 4263220), (19, 3814460), (20, 3623737), (26, 2787490), (34, 2131610), (38, 1907230), (52, 1393745), (65, 1114996), (68, 1065805), (76, 953615), (85, 852644), (95, 762892), (130, 557498), (170, 426322), (190, 381446), (221, 327940), (247, 293420), (260, 278749), (323, 224380), (340, 213161), (380, 190723), (442, 163970), (494, 146710), (646, 112190), (863, 83980), (884, 81985), (988, 73355), (1105, 65588), (1235, 58684), (1292, 56095), (1615, 44876), (1726, 41990), (2210, 32794), (2470, 29342), (3230, 22438), (3452, 20995), (4199, 17260), (4315, 16796), (4420, 16397), (4940, 14671), (6460, 11219), (8398, 8630)]