208486360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2579}}^1$

素因数の和:2680

約数の個数: 64

約数和(自身を含む): 490406400

約数和(自身を除く): 281920040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 860, 940, 1720, 1880, 2021, 2579, 4042, 5158, 8084, 10105, 10316, 12895, 16168, 20210, 20632, 25790, 40420, 51580, 80840, 103160, 110897, 121213, 221794, 242426, 443588, 484852, 554485, 606065, 887176, 969704, 1108970, 1212130, 2217940, 2424260, 4435880, 4848520, 5212159, 10424318, 20848636, 26060795, 41697272, 52121590, 104243180, 208486360]

約数ペア:

[(1, 208486360), (2, 104243180), (4, 52121590), (5, 41697272), (8, 26060795), (10, 20848636), (20, 10424318), (40, 5212159), (43, 4848520), (47, 4435880), (86, 2424260), (94, 2217940), (172, 1212130), (188, 1108970), (215, 969704), (235, 887176), (344, 606065), (376, 554485), (430, 484852), (470, 443588), (860, 242426), (940, 221794), (1720, 121213), (1880, 110897), (2021, 103160), (2579, 80840), (4042, 51580), (5158, 40420), (8084, 25790), (10105, 20632), (10316, 20210), (12895, 16168)]