71127020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1418

約数の個数: 48

約数和(自身を含む): 156038400

約数和(自身を除く): 84911380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 445, 620, 890, 1289, 1780, 2578, 2759, 5156, 5518, 6445, 11036, 12890, 13795, 25780, 27590, 39959, 55180, 79918, 114721, 159836, 199795, 229442, 399590, 458884, 573605, 799180, 1147210, 2294420, 3556351, 7112702, 14225404, 17781755, 35563510, 71127020]

約数ペア:

[(1, 71127020), (2, 35563510), (4, 17781755), (5, 14225404), (10, 7112702), (20, 3556351), (31, 2294420), (62, 1147210), (89, 799180), (124, 573605), (155, 458884), (178, 399590), (310, 229442), (356, 199795), (445, 159836), (620, 114721), (890, 79918), (1289, 55180), (1780, 39959), (2578, 27590), (2759, 25780), (5156, 13795), (5518, 12890), (6445, 11036)]