64065220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{541}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 139862016

約数和(自身を除く): 75796796

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 191, 310, 382, 541, 620, 764, 955, 1082, 1910, 2164, 2705, 3820, 5410, 5921, 10820, 11842, 16771, 23684, 29605, 33542, 59210, 67084, 83855, 103331, 118420, 167710, 206662, 335420, 413324, 516655, 1033310, 2066620, 3203261, 6406522, 12813044, 16016305, 32032610, 64065220]

約数ペア:

[(1, 64065220), (2, 32032610), (4, 16016305), (5, 12813044), (10, 6406522), (20, 3203261), (31, 2066620), (62, 1033310), (124, 516655), (155, 413324), (191, 335420), (310, 206662), (382, 167710), (541, 118420), (620, 103331), (764, 83855), (955, 67084), (1082, 59210), (1910, 33542), (2164, 29605), (2705, 23684), (3820, 16771), (5410, 11842), (5921, 10820)]