31701020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 73601136

約数和(自身を除く): 41900116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 113, 130, 166, 169, 226, 260, 332, 338, 415, 452, 565, 676, 830, 845, 1079, 1130, 1469, 1660, 1690, 2158, 2260, 2938, 3380, 4316, 5395, 5876, 7345, 9379, 10790, 14027, 14690, 18758, 19097, 21580, 28054, 29380, 37516, 38194, 46895, 56108, 70135, 76388, 93790, 95485, 121927, 140270, 187580, 190970, 243854, 280540, 381940, 487708, 609635, 1219270, 1585051, 2438540, 3170102, 6340204, 7925255, 15850510, 31701020]

約数ペア:

[(1, 31701020), (2, 15850510), (4, 7925255), (5, 6340204), (10, 3170102), (13, 2438540), (20, 1585051), (26, 1219270), (52, 609635), (65, 487708), (83, 381940), (113, 280540), (130, 243854), (166, 190970), (169, 187580), (226, 140270), (260, 121927), (332, 95485), (338, 93790), (415, 76388), (452, 70135), (565, 56108), (676, 46895), (830, 38194), (845, 37516), (1079, 29380), (1130, 28054), (1469, 21580), (1660, 19097), (1690, 18758), (2158, 14690), (2260, 14027), (2938, 10790), (3380, 9379), (4316, 7345), (5395, 5876)]