30861640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8669}}^1$

素因数の和:8769

約数の個数: 32

約数和(自身を含む): 70227000

約数和(自身を除く): 39365360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 8669, 17338, 34676, 43345, 69352, 86690, 173380, 346760, 771541, 1543082, 3086164, 3857705, 6172328, 7715410, 15430820, 30861640]

約数ペア:

[(1, 30861640), (2, 15430820), (4, 7715410), (5, 6172328), (8, 3857705), (10, 3086164), (20, 1543082), (40, 771541), (89, 346760), (178, 173380), (356, 86690), (445, 69352), (712, 43345), (890, 34676), (1780, 17338), (3560, 8669)]