39945640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{797}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 103420800

約数和(自身を除く): 63475160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 179, 280, 358, 716, 797, 895, 1253, 1432, 1594, 1790, 2506, 3188, 3580, 3985, 5012, 5579, 6265, 6376, 7160, 7970, 10024, 11158, 12530, 15940, 22316, 25060, 27895, 31880, 44632, 50120, 55790, 111580, 142663, 223160, 285326, 570652, 713315, 998641, 1141304, 1426630, 1997282, 2853260, 3994564, 4993205, 5706520, 7989128, 9986410, 19972820, 39945640]

約数ペア:

[(1, 39945640), (2, 19972820), (4, 9986410), (5, 7989128), (7, 5706520), (8, 4993205), (10, 3994564), (14, 2853260), (20, 1997282), (28, 1426630), (35, 1141304), (40, 998641), (56, 713315), (70, 570652), (140, 285326), (179, 223160), (280, 142663), (358, 111580), (716, 55790), (797, 50120), (895, 44632), (1253, 31880), (1432, 27895), (1594, 25060), (1790, 22316), (2506, 15940), (3188, 12530), (3580, 11158), (3985, 10024), (5012, 7970), (5579, 7160), (6265, 6376)]