129383680

素因数分解:

$2^8\times 5^1\times {\mathrm{101081}}^1$

素因数の和:101102

約数の個数: 36

約数和(自身を含む): 309917412

約数和(自身を除く): 180533732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 101081, 202162, 404324, 505405, 808648, 1010810, 1617296, 2021620, 3234592, 4043240, 6469184, 8086480, 12938368, 16172960, 25876736, 32345920, 64691840, 129383680]

約数ペア:

[(1, 129383680), (2, 64691840), (4, 32345920), (5, 25876736), (8, 16172960), (10, 12938368), (16, 8086480), (20, 6469184), (32, 4043240), (40, 3234592), (64, 2021620), (80, 1617296), (128, 1010810), (160, 808648), (256, 505405), (320, 404324), (640, 202162), (1280, 101081)]