28420592

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:561

約数の個数: 40

約数和(自身を含む): 57042480

約数和(自身を除く): 28621888

約数列:

[1, 2, 4, 8, 16, 43, 86, 101, 172, 202, 344, 404, 409, 688, 808, 818, 1616, 1636, 3272, 4343, 6544, 8686, 17372, 17587, 34744, 35174, 41309, 69488, 70348, 82618, 140696, 165236, 281392, 330472, 660944, 1776287, 3552574, 7105148, 14210296, 28420592]

約数ペア:

[(1, 28420592), (2, 14210296), (4, 7105148), (8, 3552574), (16, 1776287), (43, 660944), (86, 330472), (101, 281392), (172, 165236), (202, 140696), (344, 82618), (404, 70348), (409, 69488), (688, 41309), (808, 35174), (818, 34744), (1616, 17587), (1636, 17372), (3272, 8686), (4343, 6544)]