28255890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1367}}^1$

素因数の和:1443

約数の個数: 64

約数和(自身を含む): 74462976

約数和(自身を除く): 46207086

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 530, 689, 795, 1367, 1378, 1590, 2067, 2734, 3445, 4101, 4134, 6835, 6890, 8202, 10335, 13670, 17771, 20505, 20670, 35542, 41010, 53313, 72451, 88855, 106626, 144902, 177710, 217353, 266565, 362255, 434706, 533130, 724510, 941863, 1086765, 1883726, 2173530, 2825589, 4709315, 5651178, 9418630, 14127945, 28255890]

約数ペア:

[(1, 28255890), (2, 14127945), (3, 9418630), (5, 5651178), (6, 4709315), (10, 2825589), (13, 2173530), (15, 1883726), (26, 1086765), (30, 941863), (39, 724510), (53, 533130), (65, 434706), (78, 362255), (106, 266565), (130, 217353), (159, 177710), (195, 144902), (265, 106626), (318, 88855), (390, 72451), (530, 53313), (689, 41010), (795, 35542), (1367, 20670), (1378, 20505), (1590, 17771), (2067, 13670), (2734, 10335), (3445, 8202), (4101, 6890), (4134, 6835)]