28424380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 63423360

約数和(自身を除く): 34998980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 524, 571, 655, 1142, 1310, 2284, 2489, 2620, 2855, 4978, 5710, 9956, 10849, 11420, 12445, 21698, 24890, 43396, 49780, 54245, 74801, 108490, 149602, 216980, 299204, 374005, 748010, 1421219, 1496020, 2842438, 5684876, 7106095, 14212190, 28424380]

約数ペア:

[(1, 28424380), (2, 14212190), (4, 7106095), (5, 5684876), (10, 2842438), (19, 1496020), (20, 1421219), (38, 748010), (76, 374005), (95, 299204), (131, 216980), (190, 149602), (262, 108490), (380, 74801), (524, 54245), (571, 49780), (655, 43396), (1142, 24890), (1310, 21698), (2284, 12445), (2489, 11420), (2620, 10849), (2855, 9956), (4978, 5710)]