200945980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1429}}^1$

素因数の和:1606

約数の個数: 48

約数和(自身を含む): 432432000

約数和(自身を除く): 231486020

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 316, 356, 395, 445, 790, 890, 1429, 1580, 1780, 2858, 5716, 7031, 7145, 14062, 14290, 28124, 28580, 35155, 70310, 112891, 127181, 140620, 225782, 254362, 451564, 508724, 564455, 635905, 1128910, 1271810, 2257820, 2543620, 10047299, 20094598, 40189196, 50236495, 100472990, 200945980]

約数ペア:

[(1, 200945980), (2, 100472990), (4, 50236495), (5, 40189196), (10, 20094598), (20, 10047299), (79, 2543620), (89, 2257820), (158, 1271810), (178, 1128910), (316, 635905), (356, 564455), (395, 508724), (445, 451564), (790, 254362), (890, 225782), (1429, 140620), (1580, 127181), (1780, 112891), (2858, 70310), (5716, 35155), (7031, 28580), (7145, 28124), (14062, 14290)]