15781870

素因数分解:

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

素因数の和:1756

約数の個数: 32

約数和(自身を含む): 31030272

約数和(自身を除く): 15248402

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1663, 1898, 3326, 4745, 8315, 9490, 16630, 21619, 43238, 108095, 121399, 216190, 242798, 606995, 1213990, 1578187, 3156374, 7890935, 15781870]

約数ペア:

[(1, 15781870), (2, 7890935), (5, 3156374), (10, 1578187), (13, 1213990), (26, 606995), (65, 242798), (73, 216190), (130, 121399), (146, 108095), (365, 43238), (730, 21619), (949, 16630), (1663, 9490), (1898, 8315), (3326, 4745)]