31954520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 81032400

約数和(自身を除く): 49077880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 163, 169, 232, 260, 290, 326, 338, 377, 520, 580, 652, 676, 754, 815, 845, 1160, 1304, 1352, 1508, 1630, 1690, 1885, 2119, 3016, 3260, 3380, 3770, 4238, 4727, 4901, 6520, 6760, 7540, 8476, 9454, 9802, 10595, 15080, 16952, 18908, 19604, 21190, 23635, 24505, 27547, 37816, 39208, 42380, 47270, 49010, 55094, 61451, 84760, 94540, 98020, 110188, 122902, 137735, 189080, 196040, 220376, 245804, 275470, 307255, 491608, 550940, 614510, 798863, 1101880, 1229020, 1597726, 2458040, 3195452, 3994315, 6390904, 7988630, 15977260, 31954520]

約数ペア:

[(1, 31954520), (2, 15977260), (4, 7988630), (5, 6390904), (8, 3994315), (10, 3195452), (13, 2458040), (20, 1597726), (26, 1229020), (29, 1101880), (40, 798863), (52, 614510), (58, 550940), (65, 491608), (104, 307255), (116, 275470), (130, 245804), (145, 220376), (163, 196040), (169, 189080), (232, 137735), (260, 122902), (290, 110188), (326, 98020), (338, 94540), (377, 84760), (520, 61451), (580, 55094), (652, 49010), (676, 47270), (754, 42380), (815, 39208), (845, 37816), (1160, 27547), (1304, 24505), (1352, 23635), (1508, 21190), (1630, 19604), (1690, 18908), (1885, 16952), (2119, 15080), (3016, 10595), (3260, 9802), (3380, 9454), (3770, 8476), (4238, 7540), (4727, 6760), (4901, 6520)]