31115240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1129}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 76885200

約数和(自身を除く): 45769960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1129, 1378, 2120, 2258, 2756, 3445, 4516, 5512, 5645, 6890, 9032, 11290, 13780, 14677, 22580, 27560, 29354, 45160, 58708, 59837, 73385, 117416, 119674, 146770, 239348, 293540, 299185, 478696, 587080, 598370, 777881, 1196740, 1555762, 2393480, 3111524, 3889405, 6223048, 7778810, 15557620, 31115240]

約数ペア:

[(1, 31115240), (2, 15557620), (4, 7778810), (5, 6223048), (8, 3889405), (10, 3111524), (13, 2393480), (20, 1555762), (26, 1196740), (40, 777881), (52, 598370), (53, 587080), (65, 478696), (104, 299185), (106, 293540), (130, 239348), (212, 146770), (260, 119674), (265, 117416), (424, 73385), (520, 59837), (530, 58708), (689, 45160), (1060, 29354), (1129, 27560), (1378, 22580), (2120, 14677), (2258, 13780), (2756, 11290), (3445, 9032), (4516, 6890), (5512, 5645)]