71020280

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2719}}^1$

素因数の和:3383

約数の個数: 32

約数和(自身を含む): 160099200

約数和(自身を除く): 89078920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 2719, 3265, 5224, 5438, 6530, 10876, 13060, 13595, 21752, 26120, 27190, 54380, 108760, 1775507, 3551014, 7102028, 8877535, 14204056, 17755070, 35510140, 71020280]

約数ペア:

[(1, 71020280), (2, 35510140), (4, 17755070), (5, 14204056), (8, 8877535), (10, 7102028), (20, 3551014), (40, 1775507), (653, 108760), (1306, 54380), (2612, 27190), (2719, 26120), (3265, 21752), (5224, 13595), (5438, 13060), (6530, 10876)]