157780655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{647}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 212751360

約数和(自身を除く): 54970705

約数列:

[1, 5, 17, 19, 85, 95, 151, 323, 647, 755, 1615, 2567, 2869, 3235, 10999, 12293, 12835, 14345, 48773, 54995, 61465, 97697, 208981, 243865, 488485, 1044905, 1660849, 1856243, 8304245, 9281215, 31556131, 157780655]

約数ペア:

[(1, 157780655), (5, 31556131), (17, 9281215), (19, 8304245), (85, 1856243), (95, 1660849), (151, 1044905), (323, 488485), (647, 243865), (755, 208981), (1615, 97697), (2567, 61465), (2869, 54995), (3235, 48773), (10999, 14345), (12293, 12835)]