980540800

素因数分解:

$2^7\times 5^2\times {\mathrm{306419}}^1$

素因数の和:306443

約数の個数: 48

約数和(自身を含む): 2422250100

約数和(自身を除く): 1441709300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 306419, 612838, 1225676, 1532095, 2451352, 3064190, 4902704, 6128380, 7660475, 9805408, 12256760, 15320950, 19610816, 24513520, 30641900, 39221632, 49027040, 61283800, 98054080, 122567600, 196108160, 245135200, 490270400, 980540800]

約数ペア:

[(1, 980540800), (2, 490270400), (4, 245135200), (5, 196108160), (8, 122567600), (10, 98054080), (16, 61283800), (20, 49027040), (25, 39221632), (32, 30641900), (40, 24513520), (50, 19610816), (64, 15320950), (80, 12256760), (100, 9805408), (128, 7660475), (160, 6128380), (200, 4902704), (320, 3064190), (400, 2451352), (640, 1532095), (800, 1225676), (1600, 612838), (3200, 306419)]