84753340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 208565280

約数和(自身を除く): 123811940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 197, 245, 394, 439, 490, 788, 878, 980, 985, 1379, 1756, 1970, 2195, 2758, 3073, 3940, 4390, 5516, 6146, 6895, 8780, 9653, 12292, 13790, 15365, 19306, 21511, 27580, 30730, 38612, 43022, 48265, 61460, 86044, 86483, 96530, 107555, 172966, 193060, 215110, 345932, 430220, 432415, 605381, 864830, 1210762, 1729660, 2421524, 3026905, 4237667, 6053810, 8475334, 12107620, 16950668, 21188335, 42376670, 84753340]

約数ペア:

[(1, 84753340), (2, 42376670), (4, 21188335), (5, 16950668), (7, 12107620), (10, 8475334), (14, 6053810), (20, 4237667), (28, 3026905), (35, 2421524), (49, 1729660), (70, 1210762), (98, 864830), (140, 605381), (196, 432415), (197, 430220), (245, 345932), (394, 215110), (439, 193060), (490, 172966), (788, 107555), (878, 96530), (980, 86483), (985, 86044), (1379, 61460), (1756, 48265), (1970, 43022), (2195, 38612), (2758, 30730), (3073, 27580), (3940, 21511), (4390, 19306), (5516, 15365), (6146, 13790), (6895, 12292), (8780, 9653)]