78980275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12487}}^1$

素因数の和:12531

約数の個数: 24

約数和(自身を含む): 111492864

約数和(自身を除く): 32512589

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 6325, 12487, 62435, 137357, 287201, 312175, 686785, 1436005, 3159211, 3433925, 7180025, 15796055, 78980275]

約数ペア:

[(1, 78980275), (5, 15796055), (11, 7180025), (23, 3433925), (25, 3159211), (55, 1436005), (115, 686785), (253, 312175), (275, 287201), (575, 137357), (1265, 62435), (6325, 12487)]