78240405

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1373}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 130584960

約数和(自身を除く): 52344555

約数列:

[1, 3, 5, 15, 29, 87, 131, 145, 393, 435, 655, 1373, 1965, 3799, 4119, 6865, 11397, 18995, 20595, 39817, 56985, 119451, 179863, 199085, 539589, 597255, 899315, 2697945, 5216027, 15648081, 26080135, 78240405]

約数ペア:

[(1, 78240405), (3, 26080135), (5, 15648081), (15, 5216027), (29, 2697945), (87, 899315), (131, 597255), (145, 539589), (393, 199085), (435, 179863), (655, 119451), (1373, 56985), (1965, 39817), (3799, 20595), (4119, 18995), (6865, 11397)]