2080781380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{47269}}^1$

素因数の和:47380

約数の個数: 48

約数和(自身を含む): 4574223360

約数和(自身を除く): 2493441980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 4402, 8804, 11005, 22010, 44020, 47269, 94538, 189076, 236345, 472690, 945380, 1465339, 2930678, 3356099, 5861356, 6712198, 7326695, 13424396, 14653390, 16780495, 29306780, 33560990, 67121980, 104039069, 208078138, 416156276, 520195345, 1040390690, 2080781380]

約数ペア:

[(1, 2080781380), (2, 1040390690), (4, 520195345), (5, 416156276), (10, 208078138), (20, 104039069), (31, 67121980), (62, 33560990), (71, 29306780), (124, 16780495), (142, 14653390), (155, 13424396), (284, 7326695), (310, 6712198), (355, 5861356), (620, 3356099), (710, 2930678), (1420, 1465339), (2201, 945380), (4402, 472690), (8804, 236345), (11005, 189076), (22010, 94538), (44020, 47269)]