404521480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:731

約数の個数: 128

約数和(自身を含む): 1048412160

約数和(自身を除く): 643890680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 47, 55, 62, 88, 94, 110, 124, 155, 188, 220, 235, 248, 310, 341, 376, 440, 470, 517, 620, 631, 682, 940, 1034, 1240, 1262, 1364, 1457, 1705, 1880, 2068, 2524, 2585, 2728, 2914, 3155, 3410, 4136, 5048, 5170, 5828, 6310, 6820, 6941, 7285, 10340, 11656, 12620, 13640, 13882, 14570, 16027, 19561, 20680, 25240, 27764, 29140, 29657, 32054, 34705, 39122, 55528, 58280, 59314, 64108, 69410, 78244, 80135, 97805, 118628, 128216, 138820, 148285, 156488, 160270, 195610, 215171, 237256, 277640, 296570, 320540, 326227, 391220, 430342, 593140, 641080, 652454, 782440, 860684, 919367, 1075855, 1186280, 1304908, 1631135, 1721368, 1838734, 2151710, 2609816, 3262270, 3677468, 4303420, 4596835, 6524540, 7354936, 8606840, 9193670, 10113037, 13049080, 18387340, 20226074, 36774680, 40452148, 50565185, 80904296, 101130370, 202260740, 404521480]

約数ペア:

[(1, 404521480), (2, 202260740), (4, 101130370), (5, 80904296), (8, 50565185), (10, 40452148), (11, 36774680), (20, 20226074), (22, 18387340), (31, 13049080), (40, 10113037), (44, 9193670), (47, 8606840), (55, 7354936), (62, 6524540), (88, 4596835), (94, 4303420), (110, 3677468), (124, 3262270), (155, 2609816), (188, 2151710), (220, 1838734), (235, 1721368), (248, 1631135), (310, 1304908), (341, 1186280), (376, 1075855), (440, 919367), (470, 860684), (517, 782440), (620, 652454), (631, 641080), (682, 593140), (940, 430342), (1034, 391220), (1240, 326227), (1262, 320540), (1364, 296570), (1457, 277640), (1705, 237256), (1880, 215171), (2068, 195610), (2524, 160270), (2585, 156488), (2728, 148285), (2914, 138820), (3155, 128216), (3410, 118628), (4136, 97805), (5048, 80135), (5170, 78244), (5828, 69410), (6310, 64108), (6820, 59314), (6941, 58280), (7285, 55528), (10340, 39122), (11656, 34705), (12620, 32054), (13640, 29657), (13882, 29140), (14570, 27764), (16027, 25240), (19561, 20680)]