31358980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1367}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 69866496

約数和(自身を除く): 38507516

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1147, 1367, 2294, 2734, 4588, 5468, 5735, 6835, 11470, 13670, 22940, 27340, 42377, 50579, 84754, 101158, 169508, 202316, 211885, 252895, 423770, 505790, 847540, 1011580, 1567949, 3135898, 6271796, 7839745, 15679490, 31358980]

約数ペア:

[(1, 31358980), (2, 15679490), (4, 7839745), (5, 6271796), (10, 3135898), (20, 1567949), (31, 1011580), (37, 847540), (62, 505790), (74, 423770), (124, 252895), (148, 211885), (155, 202316), (185, 169508), (310, 101158), (370, 84754), (620, 50579), (740, 42377), (1147, 27340), (1367, 22940), (2294, 13670), (2734, 11470), (4588, 6835), (5468, 5735)]