2008563940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{74779}}^1$

素因数の和:74884

約数の個数: 48

約数和(自身を含む): 4522694400

約数和(自身を除く): 2514130460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 790, 1343, 1580, 2686, 5372, 6715, 13430, 26860, 74779, 149558, 299116, 373895, 747790, 1271243, 1495580, 2542486, 5084972, 5907541, 6356215, 11815082, 12712430, 23630164, 25424860, 29537705, 59075410, 100428197, 118150820, 200856394, 401712788, 502140985, 1004281970, 2008563940]

約数ペア:

[(1, 2008563940), (2, 1004281970), (4, 502140985), (5, 401712788), (10, 200856394), (17, 118150820), (20, 100428197), (34, 59075410), (68, 29537705), (79, 25424860), (85, 23630164), (158, 12712430), (170, 11815082), (316, 6356215), (340, 5907541), (395, 5084972), (790, 2542486), (1343, 1495580), (1580, 1271243), (2686, 747790), (5372, 373895), (6715, 299116), (13430, 149558), (26860, 74779)]