319639190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{8009}}^1$

素因数の和:8336

約数の個数: 32

約数和(自身を含む): 621704160

約数和(自身を除く): 302064970

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 307, 614, 1535, 3070, 3991, 7982, 8009, 16018, 19955, 39910, 40045, 80090, 104117, 208234, 520585, 1041170, 2458763, 4917526, 12293815, 24587630, 31963919, 63927838, 159819595, 319639190]

約数ペア:

[(1, 319639190), (2, 159819595), (5, 63927838), (10, 31963919), (13, 24587630), (26, 12293815), (65, 4917526), (130, 2458763), (307, 1041170), (614, 520585), (1535, 208234), (3070, 104117), (3991, 80090), (7982, 40045), (8009, 39910), (16018, 19955)]