8123820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1907}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 23079168

約数和(自身を除く): 14955348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 1907, 2130, 3814, 4260, 5721, 7628, 9535, 11442, 19070, 22884, 28605, 38140, 57210, 114420, 135397, 270794, 406191, 541588, 676985, 812382, 1353970, 1624764, 2030955, 2707940, 4061910, 8123820]

約数ペア:

[(1, 8123820), (2, 4061910), (3, 2707940), (4, 2030955), (5, 1624764), (6, 1353970), (10, 812382), (12, 676985), (15, 541588), (20, 406191), (30, 270794), (60, 135397), (71, 114420), (142, 57210), (213, 38140), (284, 28605), (355, 22884), (426, 19070), (710, 11442), (852, 9535), (1065, 7628), (1420, 5721), (1907, 4260), (2130, 3814)]