30687580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19927}}^1$

素因数の和:19954

約数の個数: 48

約数和(自身を含む): 80349696

約数和(自身を除く): 49662116

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 19927, 39854, 79708, 99635, 139489, 199270, 219197, 278978, 398540, 438394, 557956, 697445, 876788, 1095985, 1394890, 1534379, 2191970, 2789780, 3068758, 4383940, 6137516, 7671895, 15343790, 30687580]

約数ペア:

[(1, 30687580), (2, 15343790), (4, 7671895), (5, 6137516), (7, 4383940), (10, 3068758), (11, 2789780), (14, 2191970), (20, 1534379), (22, 1394890), (28, 1095985), (35, 876788), (44, 697445), (55, 557956), (70, 438394), (77, 398540), (110, 278978), (140, 219197), (154, 199270), (220, 139489), (308, 99635), (385, 79708), (770, 39854), (1540, 19927)]