172257080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{138917}}^1$

素因数の和:138959

約数の個数: 32

約数和(自身を含む): 400083840

約数和(自身を除く): 227826760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 138917, 277834, 555668, 694585, 1111336, 1389170, 2778340, 4306427, 5556680, 8612854, 17225708, 21532135, 34451416, 43064270, 86128540, 172257080]

約数ペア:

[(1, 172257080), (2, 86128540), (4, 43064270), (5, 34451416), (8, 21532135), (10, 17225708), (20, 8612854), (31, 5556680), (40, 4306427), (62, 2778340), (124, 1389170), (155, 1111336), (248, 694585), (310, 555668), (620, 277834), (1240, 138917)]