18972830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1724

約数の個数: 32

約数和(自身を含む): 36560160

約数和(自身を除く): 17587330

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 1637, 2318, 3274, 5795, 8185, 11590, 16370, 31103, 62206, 99857, 155515, 199714, 311030, 499285, 998570, 1897283, 3794566, 9486415, 18972830]

約数ペア:

[(1, 18972830), (2, 9486415), (5, 3794566), (10, 1897283), (19, 998570), (38, 499285), (61, 311030), (95, 199714), (122, 155515), (190, 99857), (305, 62206), (610, 31103), (1159, 16370), (1637, 11590), (2318, 8185), (3274, 5795)]