80966560

素因数分解:

$2^5\times 5^1\times {\mathrm{643}}^1\times {\mathrm{787}}^1$

素因数の和:1445

約数の個数: 48

約数和(自身を含む): 191824416

約数和(自身を除く): 110857856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 643, 787, 1286, 1574, 2572, 3148, 3215, 3935, 5144, 6296, 6430, 7870, 10288, 12592, 12860, 15740, 20576, 25184, 25720, 31480, 51440, 62960, 102880, 125920, 506041, 1012082, 2024164, 2530205, 4048328, 5060410, 8096656, 10120820, 16193312, 20241640, 40483280, 80966560]

約数ペア:

[(1, 80966560), (2, 40483280), (4, 20241640), (5, 16193312), (8, 10120820), (10, 8096656), (16, 5060410), (20, 4048328), (32, 2530205), (40, 2024164), (80, 1012082), (160, 506041), (643, 125920), (787, 102880), (1286, 62960), (1574, 51440), (2572, 31480), (3148, 25720), (3215, 25184), (3935, 20576), (5144, 15740), (6296, 12860), (6430, 12592), (7870, 10288)]