72265180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{557}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 164052000

約数和(自身を除く): 91786820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 499, 557, 998, 1114, 1996, 2228, 2495, 2785, 4990, 5570, 6487, 7241, 9980, 11140, 12974, 14482, 25948, 28964, 32435, 36205, 64870, 72410, 129740, 144820, 277943, 555886, 1111772, 1389715, 2779430, 3613259, 5558860, 7226518, 14453036, 18066295, 36132590, 72265180]

約数ペア:

[(1, 72265180), (2, 36132590), (4, 18066295), (5, 14453036), (10, 7226518), (13, 5558860), (20, 3613259), (26, 2779430), (52, 1389715), (65, 1111772), (130, 555886), (260, 277943), (499, 144820), (557, 129740), (998, 72410), (1114, 64870), (1996, 36205), (2228, 32435), (2495, 28964), (2785, 25948), (4990, 14482), (5570, 12974), (6487, 11140), (7241, 9980)]