1540240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1481}}^1$

素因数の和:1507

約数の個数: 40

約数和(自身を含む): 3859128

約数和(自身を除く): 2318888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1481, 2962, 5924, 7405, 11848, 14810, 19253, 23696, 29620, 38506, 59240, 77012, 96265, 118480, 154024, 192530, 308048, 385060, 770120, 1540240]

約数ペア:

[(1, 1540240), (2, 770120), (4, 385060), (5, 308048), (8, 192530), (10, 154024), (13, 118480), (16, 96265), (20, 77012), (26, 59240), (40, 38506), (52, 29620), (65, 23696), (80, 19253), (104, 14810), (130, 11848), (208, 7405), (260, 5924), (520, 2962), (1040, 1481)]