180447940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{3187}}^1$

素因数の和:3364

約数の個数: 48

約数和(自身を含む): 401688000

約数和(自身を除く): 221240060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1490, 2831, 2980, 3187, 5662, 6374, 11324, 12748, 14155, 15935, 28310, 31870, 56620, 60553, 63740, 121106, 242212, 302765, 474863, 605530, 949726, 1211060, 1899452, 2374315, 4748630, 9022397, 9497260, 18044794, 36089588, 45111985, 90223970, 180447940]

約数ペア:

[(1, 180447940), (2, 90223970), (4, 45111985), (5, 36089588), (10, 18044794), (19, 9497260), (20, 9022397), (38, 4748630), (76, 2374315), (95, 1899452), (149, 1211060), (190, 949726), (298, 605530), (380, 474863), (596, 302765), (745, 242212), (1490, 121106), (2831, 63740), (2980, 60553), (3187, 56620), (5662, 31870), (6374, 28310), (11324, 15935), (12748, 14155)]