80964560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32647}}^1$

素因数の和:32691

約数の個数: 40

約数和(自身を含む): 194320896

約数和(自身を除く): 113356336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32647, 65294, 130588, 163235, 261176, 326470, 522352, 652940, 1012057, 1305880, 2024114, 2611760, 4048228, 5060285, 8096456, 10120570, 16192912, 20241140, 40482280, 80964560]

約数ペア:

[(1, 80964560), (2, 40482280), (4, 20241140), (5, 16192912), (8, 10120570), (10, 8096456), (16, 5060285), (20, 4048228), (31, 2611760), (40, 2024114), (62, 1305880), (80, 1012057), (124, 652940), (155, 522352), (248, 326470), (310, 261176), (496, 163235), (620, 130588), (1240, 65294), (2480, 32647)]