161779995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2851}}^1$

素因数の和:2972

約数の個数: 48

約数和(自身を含む): 305209632

約数和(自身を除く): 143429637

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 97, 117, 195, 291, 485, 585, 873, 1261, 1455, 2851, 3783, 4365, 6305, 8553, 11349, 14255, 18915, 25659, 37063, 42765, 56745, 111189, 128295, 185315, 276547, 333567, 555945, 829641, 1382735, 1667835, 2488923, 3595111, 4148205, 10785333, 12444615, 17975555, 32355999, 53926665, 161779995]

約数ペア:

[(1, 161779995), (3, 53926665), (5, 32355999), (9, 17975555), (13, 12444615), (15, 10785333), (39, 4148205), (45, 3595111), (65, 2488923), (97, 1667835), (117, 1382735), (195, 829641), (291, 555945), (485, 333567), (585, 276547), (873, 185315), (1261, 128295), (1455, 111189), (2851, 56745), (3783, 42765), (4365, 37063), (6305, 25659), (8553, 18915), (11349, 14255)]