131020840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 307152000

約数和(自身を除く): 176131160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 179, 232, 290, 358, 580, 631, 716, 895, 1160, 1262, 1432, 1790, 2524, 3155, 3580, 5048, 5191, 6310, 7160, 10382, 12620, 18299, 20764, 25240, 25955, 36598, 41528, 51910, 73196, 91495, 103820, 112949, 146392, 182990, 207640, 225898, 365980, 451796, 564745, 731960, 903592, 1129490, 2258980, 3275521, 4517960, 6551042, 13102084, 16377605, 26204168, 32755210, 65510420, 131020840]

約数ペア:

[(1, 131020840), (2, 65510420), (4, 32755210), (5, 26204168), (8, 16377605), (10, 13102084), (20, 6551042), (29, 4517960), (40, 3275521), (58, 2258980), (116, 1129490), (145, 903592), (179, 731960), (232, 564745), (290, 451796), (358, 365980), (580, 225898), (631, 207640), (716, 182990), (895, 146392), (1160, 112949), (1262, 103820), (1432, 91495), (1790, 73196), (2524, 51910), (3155, 41528), (3580, 36598), (5048, 25955), (5191, 25240), (6310, 20764), (7160, 18299), (10382, 12620)]