690366940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{12457}}^1$

素因数の和:12646

約数の個数: 48

約数和(自身を含む): 1544592672

約数和(自身を除く): 854225732

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 340, 652, 815, 1630, 2771, 3260, 5542, 11084, 12457, 13855, 24914, 27710, 49828, 55420, 62285, 124570, 211769, 249140, 423538, 847076, 1058845, 2030491, 2117690, 4060982, 4235380, 8121964, 10152455, 20304910, 34518347, 40609820, 69036694, 138073388, 172591735, 345183470, 690366940]

約数ペア:

[(1, 690366940), (2, 345183470), (4, 172591735), (5, 138073388), (10, 69036694), (17, 40609820), (20, 34518347), (34, 20304910), (68, 10152455), (85, 8121964), (163, 4235380), (170, 4060982), (326, 2117690), (340, 2030491), (652, 1058845), (815, 847076), (1630, 423538), (2771, 249140), (3260, 211769), (5542, 124570), (11084, 62285), (12457, 55420), (13855, 49828), (24914, 27710)]