31508080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1091}}^1$

素因数の和:1142

約数の個数: 60

約数和(自身を含む): 77385672

約数和(自身を除く): 45877592

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1091, 1444, 1520, 1805, 2182, 2888, 3610, 4364, 5455, 5776, 7220, 8728, 10910, 14440, 17456, 20729, 21820, 28880, 41458, 43640, 82916, 87280, 103645, 165832, 207290, 331664, 393851, 414580, 787702, 829160, 1575404, 1658320, 1969255, 3150808, 3938510, 6301616, 7877020, 15754040, 31508080]

約数ペア:

[(1, 31508080), (2, 15754040), (4, 7877020), (5, 6301616), (8, 3938510), (10, 3150808), (16, 1969255), (19, 1658320), (20, 1575404), (38, 829160), (40, 787702), (76, 414580), (80, 393851), (95, 331664), (152, 207290), (190, 165832), (304, 103645), (361, 87280), (380, 82916), (722, 43640), (760, 41458), (1091, 28880), (1444, 21820), (1520, 20729), (1805, 17456), (2182, 14440), (2888, 10910), (3610, 8728), (4364, 7220), (5455, 5776)]