28685540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3559}}^1$

素因数の和:3612

約数の個数: 48

約数和(自身を含む): 66984960

約数和(自身を除く): 38299420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3559, 4030, 7118, 8060, 14236, 17795, 35590, 46267, 71180, 92534, 110329, 185068, 220658, 231335, 441316, 462670, 551645, 925340, 1103290, 1434277, 2206580, 2868554, 5737108, 7171385, 14342770, 28685540]

約数ペア:

[(1, 28685540), (2, 14342770), (4, 7171385), (5, 5737108), (10, 2868554), (13, 2206580), (20, 1434277), (26, 1103290), (31, 925340), (52, 551645), (62, 462670), (65, 441316), (124, 231335), (130, 220658), (155, 185068), (260, 110329), (310, 92534), (403, 71180), (620, 46267), (806, 35590), (1612, 17795), (2015, 14236), (3559, 8060), (4030, 7118)]