278315960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{3167}}^1$

素因数の和:3217

約数の個数: 64

約数和(自身を含む): 678585600

約数和(自身を除く): 400269640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2197, 3167, 3380, 4394, 6334, 6760, 8788, 10985, 12668, 15835, 17576, 21970, 25336, 31670, 41171, 43940, 63340, 82342, 87880, 126680, 164684, 205855, 329368, 411710, 535223, 823420, 1070446, 1646840, 2140892, 2676115, 4281784, 5352230, 6957899, 10704460, 13915798, 21408920, 27831596, 34789495, 55663192, 69578990, 139157980, 278315960]

約数ペア:

[(1, 278315960), (2, 139157980), (4, 69578990), (5, 55663192), (8, 34789495), (10, 27831596), (13, 21408920), (20, 13915798), (26, 10704460), (40, 6957899), (52, 5352230), (65, 4281784), (104, 2676115), (130, 2140892), (169, 1646840), (260, 1070446), (338, 823420), (520, 535223), (676, 411710), (845, 329368), (1352, 205855), (1690, 164684), (2197, 126680), (3167, 87880), (3380, 82342), (4394, 63340), (6334, 43940), (6760, 41171), (8788, 31670), (10985, 25336), (12668, 21970), (15835, 17576)]