664804826

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 1203358464

約数和(自身を除く): 538553638

約数列:

[1, 2, 7, 14, 37, 74, 97, 101, 131, 194, 202, 259, 262, 518, 679, 707, 917, 1358, 1414, 1834, 3589, 3737, 4847, 7178, 7474, 9694, 9797, 12707, 13231, 19594, 25123, 25414, 26159, 26462, 33929, 50246, 52318, 67858, 68579, 88949, 92617, 137158, 177898, 185234, 362489, 470159, 489547, 724978, 940318, 979094, 1283407, 2537423, 2566814, 3291113, 3426829, 5074846, 6582226, 6853658, 8983849, 17967698, 47486059, 94972118, 332402413, 664804826]

約数ペア:

[(1, 664804826), (2, 332402413), (7, 94972118), (14, 47486059), (37, 17967698), (74, 8983849), (97, 6853658), (101, 6582226), (131, 5074846), (194, 3426829), (202, 3291113), (259, 2566814), (262, 2537423), (518, 1283407), (679, 979094), (707, 940318), (917, 724978), (1358, 489547), (1414, 470159), (1834, 362489), (3589, 185234), (3737, 177898), (4847, 137158), (7178, 92617), (7474, 88949), (9694, 68579), (9797, 67858), (12707, 52318), (13231, 50246), (19594, 33929), (25123, 26462), (25414, 26159)]