64208440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1072

約数の個数: 64

約数和(自身を含む): 152098560

約数和(自身を除く): 87890120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 424, 530, 620, 977, 1060, 1240, 1643, 1954, 2120, 3286, 3908, 4885, 6572, 7816, 8215, 9770, 13144, 16430, 19540, 30287, 32860, 39080, 51781, 60574, 65720, 103562, 121148, 151435, 207124, 242296, 258905, 302870, 414248, 517810, 605740, 1035620, 1211480, 1605211, 2071240, 3210422, 6420844, 8026055, 12841688, 16052110, 32104220, 64208440]

約数ペア:

[(1, 64208440), (2, 32104220), (4, 16052110), (5, 12841688), (8, 8026055), (10, 6420844), (20, 3210422), (31, 2071240), (40, 1605211), (53, 1211480), (62, 1035620), (106, 605740), (124, 517810), (155, 414248), (212, 302870), (248, 258905), (265, 242296), (310, 207124), (424, 151435), (530, 121148), (620, 103562), (977, 65720), (1060, 60574), (1240, 51781), (1643, 39080), (1954, 32860), (2120, 30287), (3286, 19540), (3908, 16430), (4885, 13144), (6572, 9770), (7816, 8215)]