2109306875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15271}}^1$

素因数の和:15321

約数の個数: 40

約数和(自身を含む): 3005712864

約数和(自身を除く): 896405989

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 325, 425, 625, 1105, 1625, 2125, 5525, 8125, 10625, 15271, 27625, 76355, 138125, 198523, 259607, 381775, 992615, 1298035, 1908875, 3374891, 4963075, 6490175, 9544375, 16874455, 24815375, 32450875, 84372275, 124076875, 162254375, 421861375, 2109306875]

約数ペア:

[(1, 2109306875), (5, 421861375), (13, 162254375), (17, 124076875), (25, 84372275), (65, 32450875), (85, 24815375), (125, 16874455), (221, 9544375), (325, 6490175), (425, 4963075), (625, 3374891), (1105, 1908875), (1625, 1298035), (2125, 992615), (5525, 381775), (8125, 259607), (10625, 198523), (15271, 138125), (27625, 76355)]