208021700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 467548200

約数和(自身を除く): 259526500

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 113, 164, 205, 226, 410, 449, 452, 565, 820, 898, 1025, 1130, 1796, 2050, 2245, 2260, 2825, 4100, 4490, 4633, 5650, 8980, 9266, 11225, 11300, 18409, 18532, 22450, 23165, 36818, 44900, 46330, 50737, 73636, 92045, 92660, 101474, 115825, 184090, 202948, 231650, 253685, 368180, 460225, 463300, 507370, 920450, 1014740, 1268425, 1840900, 2080217, 2536850, 4160434, 5073700, 8320868, 10401085, 20802170, 41604340, 52005425, 104010850, 208021700]

約数ペア:

[(1, 208021700), (2, 104010850), (4, 52005425), (5, 41604340), (10, 20802170), (20, 10401085), (25, 8320868), (41, 5073700), (50, 4160434), (82, 2536850), (100, 2080217), (113, 1840900), (164, 1268425), (205, 1014740), (226, 920450), (410, 507370), (449, 463300), (452, 460225), (565, 368180), (820, 253685), (898, 231650), (1025, 202948), (1130, 184090), (1796, 115825), (2050, 101474), (2245, 92660), (2260, 92045), (2825, 73636), (4100, 50737), (4490, 46330), (4633, 44900), (5650, 36818), (8980, 23165), (9266, 22450), (11225, 18532), (11300, 18409)]