90921680

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{16963}}^1$

素因数の和:17043

約数の個数: 40

約数和(自身を含む): 214560672

約数和(自身を除く): 123638992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 16963, 33926, 67852, 84815, 135704, 169630, 271408, 339260, 678520, 1136521, 1357040, 2273042, 4546084, 5682605, 9092168, 11365210, 18184336, 22730420, 45460840, 90921680]

約数ペア:

[(1, 90921680), (2, 45460840), (4, 22730420), (5, 18184336), (8, 11365210), (10, 9092168), (16, 5682605), (20, 4546084), (40, 2273042), (67, 1357040), (80, 1136521), (134, 678520), (268, 339260), (335, 271408), (536, 169630), (670, 135704), (1072, 84815), (1340, 67852), (2680, 33926), (5360, 16963)]