177471920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{28081}}^1$

素因数の和:28173

約数の個数: 40

約数和(自身を含む): 417860160

約数和(自身を除く): 240388240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 28081, 56162, 112324, 140405, 224648, 280810, 449296, 561620, 1123240, 2218399, 2246480, 4436798, 8873596, 11091995, 17747192, 22183990, 35494384, 44367980, 88735960, 177471920]

約数ペア:

[(1, 177471920), (2, 88735960), (4, 44367980), (5, 35494384), (8, 22183990), (10, 17747192), (16, 11091995), (20, 8873596), (40, 4436798), (79, 2246480), (80, 2218399), (158, 1123240), (316, 561620), (395, 449296), (632, 280810), (790, 224648), (1264, 140405), (1580, 112324), (3160, 56162), (6320, 28081)]