648570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1686

約数の個数: 32

約数和(自身を含む): 1677312

約数和(自身を除く): 1028742

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 1663, 3326, 4989, 8315, 9978, 16630, 21619, 24945, 43238, 49890, 64857, 108095, 129714, 216190, 324285, 648570]

約数ペア:

[(1, 648570), (2, 324285), (3, 216190), (5, 129714), (6, 108095), (10, 64857), (13, 49890), (15, 43238), (26, 24945), (30, 21619), (39, 16630), (65, 9978), (78, 8315), (130, 4989), (195, 3326), (390, 1663)]