80621500

素因数分解:

$2^2\times 5^3\times {\mathrm{383}}^1\times {\mathrm{421}}^1$

素因数の和:823

約数の個数: 48

約数和(自身を含む): 176956416

約数和(自身を除く): 96334916

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 383, 421, 500, 766, 842, 1532, 1684, 1915, 2105, 3830, 4210, 7660, 8420, 9575, 10525, 19150, 21050, 38300, 42100, 47875, 52625, 95750, 105250, 161243, 191500, 210500, 322486, 644972, 806215, 1612430, 3224860, 4031075, 8062150, 16124300, 20155375, 40310750, 80621500]

約数ペア:

[(1, 80621500), (2, 40310750), (4, 20155375), (5, 16124300), (10, 8062150), (20, 4031075), (25, 3224860), (50, 1612430), (100, 806215), (125, 644972), (250, 322486), (383, 210500), (421, 191500), (500, 161243), (766, 105250), (842, 95750), (1532, 52625), (1684, 47875), (1915, 42100), (2105, 38300), (3830, 21050), (4210, 19150), (7660, 10525), (8420, 9575)]