80412760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64849}}^1$

素因数の和:64891

約数の個数: 32

約数和(自身を含む): 186768000

約数和(自身を除く): 106355240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 64849, 129698, 259396, 324245, 518792, 648490, 1296980, 2010319, 2593960, 4020638, 8041276, 10051595, 16082552, 20103190, 40206380, 80412760]

約数ペア:

[(1, 80412760), (2, 40206380), (4, 20103190), (5, 16082552), (8, 10051595), (10, 8041276), (20, 4020638), (31, 2593960), (40, 2010319), (62, 1296980), (124, 648490), (155, 518792), (248, 324245), (310, 259396), (620, 129698), (1240, 64849)]