217545290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{1229}}^1$

素因数の和:1838

約数の個数: 32

約数和(自身を含む): 405250560

約数和(自身を除く): 187705270

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 571, 1142, 1229, 2458, 2855, 5710, 6145, 12290, 17701, 35402, 38099, 76198, 88505, 177010, 190495, 380990, 701759, 1403518, 3508795, 7017590, 21754529, 43509058, 108772645, 217545290]

約数ペア:

[(1, 217545290), (2, 108772645), (5, 43509058), (10, 21754529), (31, 7017590), (62, 3508795), (155, 1403518), (310, 701759), (571, 380990), (1142, 190495), (1229, 177010), (2458, 88505), (2855, 76198), (5710, 38099), (6145, 35402), (12290, 17701)]