1005440

素因数分解:

$2^7\times 5^1\times {\mathrm{1571}}^1$

素因数の和:1590

約数の個数: 32

約数和(自身を含む): 2405160

約数和(自身を除く): 1399720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1571, 3142, 6284, 7855, 12568, 15710, 25136, 31420, 50272, 62840, 100544, 125680, 201088, 251360, 502720, 1005440]

約数ペア:

[(1, 1005440), (2, 502720), (4, 251360), (5, 201088), (8, 125680), (10, 100544), (16, 62840), (20, 50272), (32, 31420), (40, 25136), (64, 15710), (80, 12568), (128, 7855), (160, 6284), (320, 3142), (640, 1571)]