19900370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2389}}^1$

素因数の和:2427

約数の個数: 48

約数和(自身を含む): 44138520

約数和(自身を除く): 24238150

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 490, 595, 833, 1190, 1666, 2389, 4165, 4778, 8330, 11945, 16723, 23890, 33446, 40613, 81226, 83615, 117061, 167230, 203065, 234122, 284291, 406130, 568582, 585305, 1170610, 1421455, 1990037, 2842910, 3980074, 9950185, 19900370]

約数ペア:

[(1, 19900370), (2, 9950185), (5, 3980074), (7, 2842910), (10, 1990037), (14, 1421455), (17, 1170610), (34, 585305), (35, 568582), (49, 406130), (70, 284291), (85, 234122), (98, 203065), (119, 167230), (170, 117061), (238, 83615), (245, 81226), (490, 40613), (595, 33446), (833, 23890), (1190, 16723), (1666, 11945), (2389, 8330), (4165, 4778)]