405408560

素因数分解:

$2^4\times 5^1\times {\mathrm{5067607}}^1$

素因数の和:5067620

約数の個数: 20

約数和(自身を含む): 942575088

約数和(自身を除く): 537166528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5067607, 10135214, 20270428, 25338035, 40540856, 50676070, 81081712, 101352140, 202704280, 405408560]

約数ペア:

[(1, 405408560), (2, 202704280), (4, 101352140), (5, 81081712), (8, 50676070), (10, 40540856), (16, 25338035), (20, 20270428), (40, 10135214), (80, 5067607)]