20624380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{823}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 49835520

約数和(自身を除く): 29211140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 823, 895, 1253, 1646, 1790, 2506, 3292, 3580, 4115, 5012, 5761, 6265, 8230, 11522, 12530, 16460, 23044, 25060, 28805, 57610, 115220, 147317, 294634, 589268, 736585, 1031219, 1473170, 2062438, 2946340, 4124876, 5156095, 10312190, 20624380]

約数ペア:

[(1, 20624380), (2, 10312190), (4, 5156095), (5, 4124876), (7, 2946340), (10, 2062438), (14, 1473170), (20, 1031219), (28, 736585), (35, 589268), (70, 294634), (140, 147317), (179, 115220), (358, 57610), (716, 28805), (823, 25060), (895, 23044), (1253, 16460), (1646, 12530), (1790, 11522), (2506, 8230), (3292, 6265), (3580, 5761), (4115, 5012)]