287823920

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67883}}^1$

素因数の和:67949

約数の個数: 40

約数和(自身を含む): 681826896

約数和(自身を除く): 394002976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 67883, 135766, 271532, 339415, 543064, 678830, 1086128, 1357660, 2715320, 3597799, 5430640, 7195598, 14391196, 17988995, 28782392, 35977990, 57564784, 71955980, 143911960, 287823920]

約数ペア:

[(1, 287823920), (2, 143911960), (4, 71955980), (5, 57564784), (8, 35977990), (10, 28782392), (16, 17988995), (20, 14391196), (40, 7195598), (53, 5430640), (80, 3597799), (106, 2715320), (212, 1357660), (265, 1086128), (424, 678830), (530, 543064), (848, 339415), (1060, 271532), (2120, 135766), (4240, 67883)]