205457770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1297}}^1$

素因数の和:1415

約数の個数: 64

約数和(自身を含む): 442607616

約数和(自身を除く): 237149846

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 73, 146, 155, 217, 310, 365, 434, 511, 730, 1022, 1085, 1297, 2170, 2263, 2555, 2594, 4526, 5110, 6485, 9079, 11315, 12970, 15841, 18158, 22630, 31682, 40207, 45395, 79205, 80414, 90790, 94681, 158410, 189362, 201035, 281449, 402070, 473405, 562898, 662767, 946810, 1325534, 1407245, 2814490, 2935111, 3313835, 5870222, 6627670, 14675555, 20545777, 29351110, 41091554, 102728885, 205457770]

約数ペア:

[(1, 205457770), (2, 102728885), (5, 41091554), (7, 29351110), (10, 20545777), (14, 14675555), (31, 6627670), (35, 5870222), (62, 3313835), (70, 2935111), (73, 2814490), (146, 1407245), (155, 1325534), (217, 946810), (310, 662767), (365, 562898), (434, 473405), (511, 402070), (730, 281449), (1022, 201035), (1085, 189362), (1297, 158410), (2170, 94681), (2263, 90790), (2555, 80414), (2594, 79205), (4526, 45395), (5110, 40207), (6485, 31682), (9079, 22630), (11315, 18158), (12970, 15841)]