28140800

素因数分解:

$2^8\times 5^2\times {\mathrm{4397}}^1$

素因数の和:4423

約数の個数: 54

約数和(自身を含む): 69668718

約数和(自身を除く): 41527918

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, 4397, 6400, 8794, 17588, 21985, 35176, 43970, 70352, 87940, 109925, 140704, 175880, 219850, 281408, 351760, 439700, 562816, 703520, 879400, 1125632, 1407040, 1758800, 2814080, 3517600, 5628160, 7035200, 14070400, 28140800]

約数ペア:

[(1, 28140800), (2, 14070400), (4, 7035200), (5, 5628160), (8, 3517600), (10, 2814080), (16, 1758800), (20, 1407040), (25, 1125632), (32, 879400), (40, 703520), (50, 562816), (64, 439700), (80, 351760), (100, 281408), (128, 219850), (160, 175880), (200, 140704), (256, 109925), (320, 87940), (400, 70352), (640, 43970), (800, 35176), (1280, 21985), (1600, 17588), (3200, 8794), (4397, 6400)]