18373940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4157}}^1$

素因数の和:4196

約数の個数: 48

約数和(自身を含む): 44008272

約数和(自身を除く): 25634332

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4157, 4420, 8314, 16628, 20785, 41570, 54041, 70669, 83140, 108082, 141338, 216164, 270205, 282676, 353345, 540410, 706690, 918697, 1080820, 1413380, 1837394, 3674788, 4593485, 9186970, 18373940]

約数ペア:

[(1, 18373940), (2, 9186970), (4, 4593485), (5, 3674788), (10, 1837394), (13, 1413380), (17, 1080820), (20, 918697), (26, 706690), (34, 540410), (52, 353345), (65, 282676), (68, 270205), (85, 216164), (130, 141338), (170, 108082), (221, 83140), (260, 70669), (340, 54041), (442, 41570), (884, 20785), (1105, 16628), (2210, 8314), (4157, 4420)]