428970640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10789}}^1$

素因数の和:10880

約数の個数: 80

約数和(自身を含む): 1155997440

約数和(自身を除く): 727026800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4970, 5680, 7952, 9940, 10789, 19880, 21578, 39760, 43156, 53945, 75523, 86312, 107890, 151046, 172624, 215780, 302092, 377615, 431560, 604184, 755230, 766019, 863120, 1208368, 1510460, 1532038, 3020920, 3064076, 3830095, 5362133, 6041840, 6128152, 7660190, 10724266, 12256304, 15320380, 21448532, 26810665, 30640760, 42897064, 53621330, 61281520, 85794128, 107242660, 214485320, 428970640]

約数ペア:

[(1, 428970640), (2, 214485320), (4, 107242660), (5, 85794128), (7, 61281520), (8, 53621330), (10, 42897064), (14, 30640760), (16, 26810665), (20, 21448532), (28, 15320380), (35, 12256304), (40, 10724266), (56, 7660190), (70, 6128152), (71, 6041840), (80, 5362133), (112, 3830095), (140, 3064076), (142, 3020920), (280, 1532038), (284, 1510460), (355, 1208368), (497, 863120), (560, 766019), (568, 755230), (710, 604184), (994, 431560), (1136, 377615), (1420, 302092), (1988, 215780), (2485, 172624), (2840, 151046), (3976, 107890), (4970, 86312), (5680, 75523), (7952, 53945), (9940, 43156), (10789, 39760), (19880, 21578)]