15172840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 36916560

約数和(自身を除く): 21743720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 421, 424, 530, 680, 842, 901, 1060, 1684, 1802, 2105, 2120, 3368, 3604, 4210, 4505, 7157, 7208, 8420, 9010, 14314, 16840, 18020, 22313, 28628, 35785, 36040, 44626, 57256, 71570, 89252, 111565, 143140, 178504, 223130, 286280, 379321, 446260, 758642, 892520, 1517284, 1896605, 3034568, 3793210, 7586420, 15172840]

約数ペア:

[(1, 15172840), (2, 7586420), (4, 3793210), (5, 3034568), (8, 1896605), (10, 1517284), (17, 892520), (20, 758642), (34, 446260), (40, 379321), (53, 286280), (68, 223130), (85, 178504), (106, 143140), (136, 111565), (170, 89252), (212, 71570), (265, 57256), (340, 44626), (421, 36040), (424, 35785), (530, 28628), (680, 22313), (842, 18020), (901, 16840), (1060, 14314), (1684, 9010), (1802, 8420), (2105, 7208), (2120, 7157), (3368, 4505), (3604, 4210)]