313081780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{9551}}^1$

素因数の和:9720

約数の個数: 48

約数和(自身を含む): 722131200

約数和(自身を除く): 409049420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 1490, 1639, 2980, 3278, 6556, 8195, 9551, 16390, 19102, 32780, 38204, 47755, 95510, 105061, 191020, 210122, 420244, 525305, 1050610, 1423099, 2101220, 2846198, 5692396, 7115495, 14230990, 15654089, 28461980, 31308178, 62616356, 78270445, 156540890, 313081780]

約数ペア:

[(1, 313081780), (2, 156540890), (4, 78270445), (5, 62616356), (10, 31308178), (11, 28461980), (20, 15654089), (22, 14230990), (44, 7115495), (55, 5692396), (110, 2846198), (149, 2101220), (220, 1423099), (298, 1050610), (596, 525305), (745, 420244), (1490, 210122), (1639, 191020), (2980, 105061), (3278, 95510), (6556, 47755), (8195, 38204), (9551, 32780), (16390, 19102)]