31563740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1663}}^1$

素因数の和:1758

約数の個数: 48

約数和(自身を含む): 72403968

約数和(自身を除く): 40840228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1663, 1898, 3326, 3796, 4745, 6652, 8315, 9490, 16630, 18980, 21619, 33260, 43238, 86476, 108095, 121399, 216190, 242798, 432380, 485596, 606995, 1213990, 1578187, 2427980, 3156374, 6312748, 7890935, 15781870, 31563740]

約数ペア:

[(1, 31563740), (2, 15781870), (4, 7890935), (5, 6312748), (10, 3156374), (13, 2427980), (20, 1578187), (26, 1213990), (52, 606995), (65, 485596), (73, 432380), (130, 242798), (146, 216190), (260, 121399), (292, 108095), (365, 86476), (730, 43238), (949, 33260), (1460, 21619), (1663, 18980), (1898, 16630), (3326, 9490), (3796, 8315), (4745, 6652)]