51854720

素因数分解:

$2^7\times 5^1\times {\mathrm{81023}}^1$

素因数の和:81042

約数の個数: 32

約数和(自身を含む): 123966720

約数和(自身を除く): 72112000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 81023, 162046, 324092, 405115, 648184, 810230, 1296368, 1620460, 2592736, 3240920, 5185472, 6481840, 10370944, 12963680, 25927360, 51854720]

約数ペア:

[(1, 51854720), (2, 25927360), (4, 12963680), (5, 10370944), (8, 6481840), (10, 5185472), (16, 3240920), (20, 2592736), (32, 1620460), (40, 1296368), (64, 810230), (80, 648184), (128, 405115), (160, 324092), (320, 162046), (640, 81023)]