28494440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1481}}^1$

素因数の和:1542

約数の個数: 64

約数和(自身を含む): 70958160

約数和(自身を除く): 42463720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1481, 1924, 2405, 2962, 3848, 4810, 5924, 7405, 9620, 11848, 14810, 19240, 19253, 29620, 38506, 54797, 59240, 77012, 96265, 109594, 154024, 192530, 219188, 273985, 385060, 438376, 547970, 712361, 770120, 1095940, 1424722, 2191880, 2849444, 3561805, 5698888, 7123610, 14247220, 28494440]

約数ペア:

[(1, 28494440), (2, 14247220), (4, 7123610), (5, 5698888), (8, 3561805), (10, 2849444), (13, 2191880), (20, 1424722), (26, 1095940), (37, 770120), (40, 712361), (52, 547970), (65, 438376), (74, 385060), (104, 273985), (130, 219188), (148, 192530), (185, 154024), (260, 109594), (296, 96265), (370, 77012), (481, 59240), (520, 54797), (740, 38506), (962, 29620), (1480, 19253), (1481, 19240), (1924, 14810), (2405, 11848), (2962, 9620), (3848, 7405), (4810, 5924)]