139782400

素因数分解:

$2^8\times 5^2\times {\mathrm{21841}}^1$

素因数の和:21867

約数の個数: 54

約数和(自身を含む): 345999122

約数和(自身を除く): 206216722

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 21841, 43682, 87364, 109205, 174728, 218410, 349456, 436820, 546025, 698912, 873640, 1092050, 1397824, 1747280, 2184100, 2795648, 3494560, 4368200, 5591296, 6989120, 8736400, 13978240, 17472800, 27956480, 34945600, 69891200, 139782400]

約数ペア:

[(1, 139782400), (2, 69891200), (4, 34945600), (5, 27956480), (8, 17472800), (10, 13978240), (16, 8736400), (20, 6989120), (25, 5591296), (32, 4368200), (40, 3494560), (50, 2795648), (64, 2184100), (80, 1747280), (100, 1397824), (128, 1092050), (160, 873640), (200, 698912), (256, 546025), (320, 436820), (400, 349456), (640, 218410), (800, 174728), (1280, 109205), (1600, 87364), (3200, 43682), (6400, 21841)]