402425240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{205319}}^1$

素因数の和:205344

約数の個数: 48

約数和(自身を含む): 1053291600

約数和(自身を除く): 650866360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 205319, 410638, 821276, 1026595, 1437233, 1642552, 2053190, 2874466, 4106380, 5748932, 7186165, 8212760, 10060631, 11497864, 14372330, 20121262, 28744660, 40242524, 50303155, 57489320, 80485048, 100606310, 201212620, 402425240]

約数ペア:

[(1, 402425240), (2, 201212620), (4, 100606310), (5, 80485048), (7, 57489320), (8, 50303155), (10, 40242524), (14, 28744660), (20, 20121262), (28, 14372330), (35, 11497864), (40, 10060631), (49, 8212760), (56, 7186165), (70, 5748932), (98, 4106380), (140, 2874466), (196, 2053190), (245, 1642552), (280, 1437233), (392, 1026595), (490, 821276), (980, 410638), (1960, 205319)]