2088555880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{8263}}^1$

素因数の和:8434

約数の個数: 64

約数和(自身を含む): 4819564800

約数和(自身を除く): 2731008920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 89, 142, 178, 284, 355, 356, 445, 568, 710, 712, 890, 1420, 1780, 2840, 3560, 6319, 8263, 12638, 16526, 25276, 31595, 33052, 41315, 50552, 63190, 66104, 82630, 126380, 165260, 252760, 330520, 586673, 735407, 1173346, 1470814, 2346692, 2933365, 2941628, 3677035, 4693384, 5866730, 5883256, 7354070, 11733460, 14708140, 23466920, 29416280, 52213897, 104427794, 208855588, 261069485, 417711176, 522138970, 1044277940, 2088555880]

約数ペア:

[(1, 2088555880), (2, 1044277940), (4, 522138970), (5, 417711176), (8, 261069485), (10, 208855588), (20, 104427794), (40, 52213897), (71, 29416280), (89, 23466920), (142, 14708140), (178, 11733460), (284, 7354070), (355, 5883256), (356, 5866730), (445, 4693384), (568, 3677035), (710, 2941628), (712, 2933365), (890, 2346692), (1420, 1470814), (1780, 1173346), (2840, 735407), (3560, 586673), (6319, 330520), (8263, 252760), (12638, 165260), (16526, 126380), (25276, 82630), (31595, 66104), (33052, 63190), (41315, 50552)]