202190020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{3571}}^1$

素因数の和:3748

約数の個数: 48

約数和(自身を含む): 450072000

約数和(自身を除く): 247881980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1490, 2831, 2980, 3571, 5662, 7142, 11324, 14155, 14284, 17855, 28310, 35710, 56620, 67849, 71420, 135698, 271396, 339245, 532079, 678490, 1064158, 1356980, 2128316, 2660395, 5320790, 10109501, 10641580, 20219002, 40438004, 50547505, 101095010, 202190020]

約数ペア:

[(1, 202190020), (2, 101095010), (4, 50547505), (5, 40438004), (10, 20219002), (19, 10641580), (20, 10109501), (38, 5320790), (76, 2660395), (95, 2128316), (149, 1356980), (190, 1064158), (298, 678490), (380, 532079), (596, 339245), (745, 271396), (1490, 135698), (2831, 71420), (2980, 67849), (3571, 56620), (5662, 35710), (7142, 28310), (11324, 17855), (14155, 14284)]