31813275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 57607424

約数和(自身を除く): 25794149

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 67, 75, 195, 201, 325, 335, 487, 871, 975, 1005, 1461, 1675, 2435, 2613, 4355, 5025, 6331, 7305, 12175, 13065, 18993, 21775, 31655, 32629, 36525, 65325, 94965, 97887, 158275, 163145, 424177, 474825, 489435, 815725, 1272531, 2120885, 2447175, 6362655, 10604425, 31813275]

約数ペア:

[(1, 31813275), (3, 10604425), (5, 6362655), (13, 2447175), (15, 2120885), (25, 1272531), (39, 815725), (65, 489435), (67, 474825), (75, 424177), (195, 163145), (201, 158275), (325, 97887), (335, 94965), (487, 65325), (871, 36525), (975, 32629), (1005, 31655), (1461, 21775), (1675, 18993), (2435, 13065), (2613, 12175), (4355, 7305), (5025, 6331)]