407979940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{3217}}^1$

素因数の和:3616

約数の個数: 48

約数和(自身を含む): 909870192

約数和(自身を除く): 501890252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 373, 746, 1492, 1865, 3217, 3730, 6341, 6434, 7460, 12682, 12868, 16085, 25364, 31705, 32170, 54689, 63410, 64340, 109378, 126820, 218756, 273445, 546890, 1093780, 1199941, 2399882, 4799764, 5999705, 11999410, 20398997, 23998820, 40797994, 81595988, 101994985, 203989970, 407979940]

約数ペア:

[(1, 407979940), (2, 203989970), (4, 101994985), (5, 81595988), (10, 40797994), (17, 23998820), (20, 20398997), (34, 11999410), (68, 5999705), (85, 4799764), (170, 2399882), (340, 1199941), (373, 1093780), (746, 546890), (1492, 273445), (1865, 218756), (3217, 126820), (3730, 109378), (6341, 64340), (6434, 63410), (7460, 54689), (12682, 32170), (12868, 31705), (16085, 25364)]