20214425600

素因数分解:

$2^{11}\times 5^2\times {\mathrm{394813}}^1$

素因数の和:394845

約数の個数: 72

約数和(自身を含む): 50119663230

約数和(自身を除く): 29905237630

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1600, 2048, 2560, 3200, 5120, 6400, 10240, 12800, 25600, 51200, 394813, 789626, 1579252, 1974065, 3158504, 3948130, 6317008, 7896260, 9870325, 12634016, 15792520, 19740650, 25268032, 31585040, 39481300, 50536064, 63170080, 78962600, 101072128, 126340160, 157925200, 202144256, 252680320, 315850400, 404288512, 505360640, 631700800, 808577024, 1010721280, 1263401600, 2021442560, 2526803200, 4042885120, 5053606400, 10107212800, 20214425600]

約数ペア:

[(1, 20214425600), (2, 10107212800), (4, 5053606400), (5, 4042885120), (8, 2526803200), (10, 2021442560), (16, 1263401600), (20, 1010721280), (25, 808577024), (32, 631700800), (40, 505360640), (50, 404288512), (64, 315850400), (80, 252680320), (100, 202144256), (128, 157925200), (160, 126340160), (200, 101072128), (256, 78962600), (320, 63170080), (400, 50536064), (512, 39481300), (640, 31585040), (800, 25268032), (1024, 19740650), (1280, 15792520), (1600, 12634016), (2048, 9870325), (2560, 7896260), (3200, 6317008), (5120, 3948130), (6400, 3158504), (10240, 1974065), (12800, 1579252), (25600, 789626), (51200, 394813)]