56653960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 139838400

約数和(自身を除く): 83184440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 331, 389, 440, 662, 778, 1324, 1556, 1655, 1945, 2648, 3112, 3310, 3641, 3890, 4279, 6620, 7282, 7780, 8558, 13240, 14564, 15560, 17116, 18205, 21395, 29128, 34232, 36410, 42790, 72820, 85580, 128759, 145640, 171160, 257518, 515036, 643795, 1030072, 1287590, 1416349, 2575180, 2832698, 5150360, 5665396, 7081745, 11330792, 14163490, 28326980, 56653960]

約数ペア:

[(1, 56653960), (2, 28326980), (4, 14163490), (5, 11330792), (8, 7081745), (10, 5665396), (11, 5150360), (20, 2832698), (22, 2575180), (40, 1416349), (44, 1287590), (55, 1030072), (88, 643795), (110, 515036), (220, 257518), (331, 171160), (389, 145640), (440, 128759), (662, 85580), (778, 72820), (1324, 42790), (1556, 36410), (1655, 34232), (1945, 29128), (2648, 21395), (3112, 18205), (3310, 17116), (3641, 15560), (3890, 14564), (4279, 13240), (6620, 8558), (7282, 7780)]