12465640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:754

約数の個数: 64

約数和(自身を含む): 31389120

約数和(自身を除く): 18923480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 691, 820, 902, 1382, 1640, 1804, 2255, 2764, 3455, 3608, 4510, 5528, 6910, 7601, 9020, 13820, 15202, 18040, 27640, 28331, 30404, 38005, 56662, 60808, 76010, 113324, 141655, 152020, 226648, 283310, 304040, 311641, 566620, 623282, 1133240, 1246564, 1558205, 2493128, 3116410, 6232820, 12465640]

約数ペア:

[(1, 12465640), (2, 6232820), (4, 3116410), (5, 2493128), (8, 1558205), (10, 1246564), (11, 1133240), (20, 623282), (22, 566620), (40, 311641), (41, 304040), (44, 283310), (55, 226648), (82, 152020), (88, 141655), (110, 113324), (164, 76010), (205, 60808), (220, 56662), (328, 38005), (410, 30404), (440, 28331), (451, 27640), (691, 18040), (820, 15202), (902, 13820), (1382, 9020), (1640, 7601), (1804, 6910), (2255, 5528), (2764, 4510), (3455, 3608)]