278375780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{283}}^1\times {\mathrm{359}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 592583040

約数和(自身を除く): 314207260

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 283, 359, 548, 566, 685, 718, 1132, 1370, 1415, 1436, 1795, 2740, 2830, 3590, 5660, 7180, 38771, 49183, 77542, 98366, 101597, 155084, 193855, 196732, 203194, 245915, 387710, 406388, 491830, 507985, 775420, 983660, 1015970, 2031940, 13918789, 27837578, 55675156, 69593945, 139187890, 278375780]

約数ペア:

[(1, 278375780), (2, 139187890), (4, 69593945), (5, 55675156), (10, 27837578), (20, 13918789), (137, 2031940), (274, 1015970), (283, 983660), (359, 775420), (548, 507985), (566, 491830), (685, 406388), (718, 387710), (1132, 245915), (1370, 203194), (1415, 196732), (1436, 193855), (1795, 155084), (2740, 101597), (2830, 98366), (3590, 77542), (5660, 49183), (7180, 38771)]