280403708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1433}}^1$

素因数の和:1574

約数の個数: 48

約数和(自身を含む): 546388416

約数和(自身を除く): 265984708

約数列:

[1, 2, 4, 13, 26, 52, 53, 71, 106, 142, 212, 284, 689, 923, 1378, 1433, 1846, 2756, 2866, 3692, 3763, 5732, 7526, 15052, 18629, 37258, 48919, 74516, 75949, 97838, 101743, 151898, 195676, 203486, 303796, 406972, 987337, 1322659, 1974674, 2645318, 3949348, 5290636, 5392379, 10784758, 21569516, 70100927, 140201854, 280403708]

約数ペア:

[(1, 280403708), (2, 140201854), (4, 70100927), (13, 21569516), (26, 10784758), (52, 5392379), (53, 5290636), (71, 3949348), (106, 2645318), (142, 1974674), (212, 1322659), (284, 987337), (689, 406972), (923, 303796), (1378, 203486), (1433, 195676), (1846, 151898), (2756, 101743), (2866, 97838), (3692, 75949), (3763, 74516), (5732, 48919), (7526, 37258), (15052, 18629)]