218216025

素因数分解:

$3^4\times 5^2\times {\mathrm{107761}}^1$

素因数の和:107783

約数の個数: 30

約数和(自身を含む): 404215262

約数和(自身を除く): 185999237

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 107761, 323283, 538805, 969849, 1616415, 2694025, 2909547, 4849245, 8082075, 8728641, 14547735, 24246225, 43643205, 72738675, 218216025]

約数ペア:

[(1, 218216025), (3, 72738675), (5, 43643205), (9, 24246225), (15, 14547735), (25, 8728641), (27, 8082075), (45, 4849245), (75, 2909547), (81, 2694025), (135, 1616415), (225, 969849), (405, 538805), (675, 323283), (2025, 107761)]