28781655

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1019}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 52876800

約数和(自身を除く): 24095145

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 269, 807, 1019, 1345, 1883, 3057, 4035, 5095, 5649, 7133, 9415, 15285, 21399, 28245, 35665, 106995, 274111, 822333, 1370555, 1918777, 4111665, 5756331, 9593885, 28781655]

約数ペア:

[(1, 28781655), (3, 9593885), (5, 5756331), (7, 4111665), (15, 1918777), (21, 1370555), (35, 822333), (105, 274111), (269, 106995), (807, 35665), (1019, 28245), (1345, 21399), (1883, 15285), (3057, 9415), (4035, 7133), (5095, 5649)]