64308880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25931}}^1$

素因数の和:25975

約数の個数: 40

約数和(自身を含む): 154347264

約数和(自身を除く): 90038384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 25931, 51862, 103724, 129655, 207448, 259310, 414896, 518620, 803861, 1037240, 1607722, 2074480, 3215444, 4019305, 6430888, 8038610, 12861776, 16077220, 32154440, 64308880]

約数ペア:

[(1, 64308880), (2, 32154440), (4, 16077220), (5, 12861776), (8, 8038610), (10, 6430888), (16, 4019305), (20, 3215444), (31, 2074480), (40, 1607722), (62, 1037240), (80, 803861), (124, 518620), (155, 414896), (248, 259310), (310, 207448), (496, 129655), (620, 103724), (1240, 51862), (2480, 25931)]