9940840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2731}}^1$

素因数の和:2762

約数の個数: 64

約数和(自身を含む): 27538560

約数和(自身を除く): 17597720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 2731, 3640, 5462, 10924, 13655, 19117, 21848, 27310, 35503, 38234, 54620, 71006, 76468, 95585, 109240, 142012, 152936, 177515, 191170, 248521, 284024, 355030, 382340, 497042, 710060, 764680, 994084, 1242605, 1420120, 1988168, 2485210, 4970420, 9940840]

約数ペア:

[(1, 9940840), (2, 4970420), (4, 2485210), (5, 1988168), (7, 1420120), (8, 1242605), (10, 994084), (13, 764680), (14, 710060), (20, 497042), (26, 382340), (28, 355030), (35, 284024), (40, 248521), (52, 191170), (56, 177515), (65, 152936), (70, 142012), (91, 109240), (104, 95585), (130, 76468), (140, 71006), (182, 54620), (260, 38234), (280, 35503), (364, 27310), (455, 21848), (520, 19117), (728, 13655), (910, 10924), (1820, 5462), (2731, 3640)]