199748680

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{18427}}^1$

素因数の和:18709

約数の個数: 32

約数和(自身を含む): 451117440

約数和(自身を除く): 251368760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 18427, 36854, 73708, 92135, 147416, 184270, 368540, 737080, 4993717, 9987434, 19974868, 24968585, 39949736, 49937170, 99874340, 199748680]

約数ペア:

[(1, 199748680), (2, 99874340), (4, 49937170), (5, 39949736), (8, 24968585), (10, 19974868), (20, 9987434), (40, 4993717), (271, 737080), (542, 368540), (1084, 184270), (1355, 147416), (2168, 92135), (2710, 73708), (5420, 36854), (10840, 18427)]