219157220

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1\times {\mathrm{557}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 467970048

約数和(自身を除く): 248812828

約数列:

[1, 2, 4, 5, 10, 20, 103, 191, 206, 382, 412, 515, 557, 764, 955, 1030, 1114, 1910, 2060, 2228, 2785, 3820, 5570, 11140, 19673, 39346, 57371, 78692, 98365, 106387, 114742, 196730, 212774, 229484, 286855, 393460, 425548, 531935, 573710, 1063870, 1147420, 2127740, 10957861, 21915722, 43831444, 54789305, 109578610, 219157220]

約数ペア:

[(1, 219157220), (2, 109578610), (4, 54789305), (5, 43831444), (10, 21915722), (20, 10957861), (103, 2127740), (191, 1147420), (206, 1063870), (382, 573710), (412, 531935), (515, 425548), (557, 393460), (764, 286855), (955, 229484), (1030, 212774), (1114, 196730), (1910, 114742), (2060, 106387), (2228, 98365), (2785, 78692), (3820, 57371), (5570, 39346), (11140, 19673)]