649140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 1881600

約数和(自身を除く): 1232460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 349, 372, 465, 620, 698, 930, 1047, 1396, 1745, 1860, 2094, 3490, 4188, 5235, 6980, 10470, 10819, 20940, 21638, 32457, 43276, 54095, 64914, 108190, 129828, 162285, 216380, 324570, 649140]

約数ペア:

[(1, 649140), (2, 324570), (3, 216380), (4, 162285), (5, 129828), (6, 108190), (10, 64914), (12, 54095), (15, 43276), (20, 32457), (30, 21638), (31, 20940), (60, 10819), (62, 10470), (93, 6980), (124, 5235), (155, 4188), (186, 3490), (310, 2094), (349, 1860), (372, 1745), (465, 1396), (620, 1047), (698, 930)]