64206890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1059

約数の個数: 64

約数和(自身を含む): 137134080

約数和(自身を除く): 72927190

約数列:

[1, 2, 5, 10, 11, 19, 22, 31, 38, 55, 62, 95, 110, 155, 190, 209, 310, 341, 418, 589, 682, 991, 1045, 1178, 1705, 1982, 2090, 2945, 3410, 4955, 5890, 6479, 9910, 10901, 12958, 18829, 21802, 30721, 32395, 37658, 54505, 61442, 64790, 94145, 109010, 153605, 188290, 207119, 307210, 337931, 414238, 583699, 675862, 1035595, 1167398, 1689655, 2071190, 2918495, 3379310, 5836990, 6420689, 12841378, 32103445, 64206890]

約数ペア:

[(1, 64206890), (2, 32103445), (5, 12841378), (10, 6420689), (11, 5836990), (19, 3379310), (22, 2918495), (31, 2071190), (38, 1689655), (55, 1167398), (62, 1035595), (95, 675862), (110, 583699), (155, 414238), (190, 337931), (209, 307210), (310, 207119), (341, 188290), (418, 153605), (589, 109010), (682, 94145), (991, 64790), (1045, 61442), (1178, 54505), (1705, 37658), (1982, 32395), (2090, 30721), (2945, 21802), (3410, 18829), (4955, 12958), (5890, 10901), (6479, 9910)]