200080900

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{22481}}^1$

素因数の和:22584

約数の個数: 36

約数和(自身を含む): 439073460

約数和(自身を除く): 238992560

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 4450, 8900, 22481, 44962, 89924, 112405, 224810, 449620, 562025, 1124050, 2000809, 2248100, 4001618, 8003236, 10004045, 20008090, 40016180, 50020225, 100040450, 200080900]

約数ペア:

[(1, 200080900), (2, 100040450), (4, 50020225), (5, 40016180), (10, 20008090), (20, 10004045), (25, 8003236), (50, 4001618), (89, 2248100), (100, 2000809), (178, 1124050), (356, 562025), (445, 449620), (890, 224810), (1780, 112405), (2225, 89924), (4450, 44962), (8900, 22481)]