15268840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4289}}^1$

素因数の和:4389

約数の個数: 32

約数和(自身を含む): 34749000

約数和(自身を除く): 19480160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 4289, 8578, 17156, 21445, 34312, 42890, 85780, 171560, 381721, 763442, 1526884, 1908605, 3053768, 3817210, 7634420, 15268840]

約数ペア:

[(1, 15268840), (2, 7634420), (4, 3817210), (5, 3053768), (8, 1908605), (10, 1526884), (20, 763442), (40, 381721), (89, 171560), (178, 85780), (356, 42890), (445, 34312), (712, 21445), (890, 17156), (1780, 8578), (3560, 4289)]