71531180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1553}}^1$

素因数の和:1623

約数の個数: 72

約数和(自身を含む): 178573248

約数和(自身を除く): 107042068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1553, 1645, 2303, 3106, 3290, 4606, 6212, 6580, 7765, 9212, 10871, 11515, 15530, 21742, 23030, 31060, 43484, 46060, 54355, 72991, 76097, 108710, 145982, 152194, 217420, 291964, 304388, 364955, 380485, 510937, 729910, 760970, 1021874, 1459820, 1521940, 2043748, 2554685, 3576559, 5109370, 7153118, 10218740, 14306236, 17882795, 35765590, 71531180]

約数ペア:

[(1, 71531180), (2, 35765590), (4, 17882795), (5, 14306236), (7, 10218740), (10, 7153118), (14, 5109370), (20, 3576559), (28, 2554685), (35, 2043748), (47, 1521940), (49, 1459820), (70, 1021874), (94, 760970), (98, 729910), (140, 510937), (188, 380485), (196, 364955), (235, 304388), (245, 291964), (329, 217420), (470, 152194), (490, 145982), (658, 108710), (940, 76097), (980, 72991), (1316, 54355), (1553, 46060), (1645, 43484), (2303, 31060), (3106, 23030), (3290, 21742), (4606, 15530), (6212, 11515), (6580, 10871), (7765, 9212)]