31471960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2087}}^1$

素因数の和:2140

約数の個数: 64

約数和(自身を含む): 78926400

約数和(自身を除く): 47454440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1508, 1885, 2087, 3016, 3770, 4174, 7540, 8348, 10435, 15080, 16696, 20870, 27131, 41740, 54262, 60523, 83480, 108524, 121046, 135655, 217048, 242092, 271310, 302615, 484184, 542620, 605230, 786799, 1085240, 1210460, 1573598, 2420920, 3147196, 3933995, 6294392, 7867990, 15735980, 31471960]

約数ペア:

[(1, 31471960), (2, 15735980), (4, 7867990), (5, 6294392), (8, 3933995), (10, 3147196), (13, 2420920), (20, 1573598), (26, 1210460), (29, 1085240), (40, 786799), (52, 605230), (58, 542620), (65, 484184), (104, 302615), (116, 271310), (130, 242092), (145, 217048), (232, 135655), (260, 121046), (290, 108524), (377, 83480), (520, 60523), (580, 54262), (754, 41740), (1160, 27131), (1508, 20870), (1885, 16696), (2087, 15080), (3016, 10435), (3770, 8348), (4174, 7540)]