261391920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1089133}}^1$

素因数の和:1089149

約数の個数: 40

約数和(自身を含む): 810315696

約数和(自身を除く): 548923776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1089133, 2178266, 3267399, 4356532, 5445665, 6534798, 8713064, 10891330, 13069596, 16336995, 17426128, 21782660, 26139192, 32673990, 43565320, 52278384, 65347980, 87130640, 130695960, 261391920]

約数ペア:

[(1, 261391920), (2, 130695960), (3, 87130640), (4, 65347980), (5, 52278384), (6, 43565320), (8, 32673990), (10, 26139192), (12, 21782660), (15, 17426128), (16, 16336995), (20, 13069596), (24, 10891330), (30, 8713064), (40, 6534798), (48, 5445665), (60, 4356532), (80, 3267399), (120, 2178266), (240, 1089133)]