64991320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{313}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 152604000

約数和(自身を除く): 87612680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 179, 232, 290, 313, 358, 580, 626, 716, 895, 1160, 1252, 1432, 1565, 1790, 2504, 3130, 3580, 5191, 6260, 7160, 9077, 10382, 12520, 18154, 20764, 25955, 36308, 41528, 45385, 51910, 56027, 72616, 90770, 103820, 112054, 181540, 207640, 224108, 280135, 363080, 448216, 560270, 1120540, 1624783, 2241080, 3249566, 6499132, 8123915, 12998264, 16247830, 32495660, 64991320]

約数ペア:

[(1, 64991320), (2, 32495660), (4, 16247830), (5, 12998264), (8, 8123915), (10, 6499132), (20, 3249566), (29, 2241080), (40, 1624783), (58, 1120540), (116, 560270), (145, 448216), (179, 363080), (232, 280135), (290, 224108), (313, 207640), (358, 181540), (580, 112054), (626, 103820), (716, 90770), (895, 72616), (1160, 56027), (1252, 51910), (1432, 45385), (1565, 41528), (1790, 36308), (2504, 25955), (3130, 20764), (3580, 18154), (5191, 12520), (6260, 10382), (7160, 9077)]