163640125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1951}}^1$

素因数の和:2038

約数の個数: 32

約数和(自身を含む): 226556928

約数和(自身を除く): 62916803

約数列:

[1, 5, 11, 25, 55, 61, 125, 275, 305, 671, 1375, 1525, 1951, 3355, 7625, 9755, 16775, 21461, 48775, 83875, 107305, 119011, 243875, 536525, 595055, 1309121, 2682625, 2975275, 6545605, 14876375, 32728025, 163640125]

約数ペア:

[(1, 163640125), (5, 32728025), (11, 14876375), (25, 6545605), (55, 2975275), (61, 2682625), (125, 1309121), (275, 595055), (305, 536525), (671, 243875), (1375, 119011), (1525, 107305), (1951, 83875), (3355, 48775), (7625, 21461), (9755, 16775)]