257901710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1427}}^1$

素因数の和:1529

約数の個数: 64

約数和(自身を含む): 532998144

約数和(自身を除く): 275096434

約数列:

[1, 2, 5, 10, 11, 22, 31, 53, 55, 62, 106, 110, 155, 265, 310, 341, 530, 583, 682, 1166, 1427, 1643, 1705, 2854, 2915, 3286, 3410, 5830, 7135, 8215, 14270, 15697, 16430, 18073, 31394, 36146, 44237, 75631, 78485, 88474, 90365, 151262, 156970, 180730, 221185, 378155, 442370, 486607, 756310, 831941, 973214, 1663882, 2344561, 2433035, 4159705, 4689122, 4866070, 8319410, 11722805, 23445610, 25790171, 51580342, 128950855, 257901710]

約数ペア:

[(1, 257901710), (2, 128950855), (5, 51580342), (10, 25790171), (11, 23445610), (22, 11722805), (31, 8319410), (53, 4866070), (55, 4689122), (62, 4159705), (106, 2433035), (110, 2344561), (155, 1663882), (265, 973214), (310, 831941), (341, 756310), (530, 486607), (583, 442370), (682, 378155), (1166, 221185), (1427, 180730), (1643, 156970), (1705, 151262), (2854, 90365), (2915, 88474), (3286, 78485), (3410, 75631), (5830, 44237), (7135, 36146), (8215, 31394), (14270, 18073), (15697, 16430)]