2019475386520

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1\times {\mathrm{1812359}}^1$

素因数の和:1812772

約数の個数: 64

約数和(自身を含む): 4609556424000

約数和(自身を除く): 2590081037480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 313, 356, 445, 626, 712, 890, 1252, 1565, 1780, 2504, 3130, 3560, 6260, 12520, 27857, 55714, 111428, 139285, 222856, 278570, 557140, 1114280, 1812359, 3624718, 7249436, 9061795, 14498872, 18123590, 36247180, 72494360, 161299951, 322599902, 567268367, 645199804, 806499755, 1134536734, 1290399608, 1612999510, 2269073468, 2836341835, 3225999020, 4538146936, 5672683670, 6451998040, 11345367340, 22690734680, 50486884663, 100973769326, 201947538652, 252434423315, 403895077304, 504868846630, 1009737693260, 2019475386520]

約数ペア:

[(1, 2019475386520), (2, 1009737693260), (4, 504868846630), (5, 403895077304), (8, 252434423315), (10, 201947538652), (20, 100973769326), (40, 50486884663), (89, 22690734680), (178, 11345367340), (313, 6451998040), (356, 5672683670), (445, 4538146936), (626, 3225999020), (712, 2836341835), (890, 2269073468), (1252, 1612999510), (1565, 1290399608), (1780, 1134536734), (2504, 806499755), (3130, 645199804), (3560, 567268367), (6260, 322599902), (12520, 161299951), (27857, 72494360), (55714, 36247180), (111428, 18123590), (139285, 14498872), (222856, 9061795), (278570, 7249436), (557140, 3624718), (1114280, 1812359)]