201668680

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{9677}}^1$

素因数の和:10209

約数の個数: 32

約数和(自身を含む): 454672440

約数和(自身を除く): 253003760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4168, 5210, 9677, 10420, 19354, 20840, 38708, 48385, 77416, 96770, 193540, 387080, 5041717, 10083434, 20166868, 25208585, 40333736, 50417170, 100834340, 201668680]

約数ペア:

[(1, 201668680), (2, 100834340), (4, 50417170), (5, 40333736), (8, 25208585), (10, 20166868), (20, 10083434), (40, 5041717), (521, 387080), (1042, 193540), (2084, 96770), (2605, 77416), (4168, 48385), (5210, 38708), (9677, 20840), (10420, 19354)]