28804960

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4391}}^1$

素因数の和:4447

約数の個数: 48

約数和(自身を含む): 69727392

約数和(自身を除く): 40922432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 4391, 6560, 8782, 17564, 21955, 35128, 43910, 70256, 87820, 140512, 175640, 180031, 351280, 360062, 702560, 720124, 900155, 1440248, 1800310, 2880496, 3600620, 5760992, 7201240, 14402480, 28804960]

約数ペア:

[(1, 28804960), (2, 14402480), (4, 7201240), (5, 5760992), (8, 3600620), (10, 2880496), (16, 1800310), (20, 1440248), (32, 900155), (40, 720124), (41, 702560), (80, 360062), (82, 351280), (160, 180031), (164, 175640), (205, 140512), (328, 87820), (410, 70256), (656, 43910), (820, 35128), (1312, 21955), (1640, 17564), (3280, 8782), (4391, 6560)]