28654840

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1259}}^1$

素因数の和:1839

約数の個数: 32

約数和(自身を含む): 64638000

約数和(自身を除く): 35983160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1138, 1259, 2276, 2518, 2845, 4552, 5036, 5690, 6295, 10072, 11380, 12590, 22760, 25180, 50360, 716371, 1432742, 2865484, 3581855, 5730968, 7163710, 14327420, 28654840]

約数ペア:

[(1, 28654840), (2, 14327420), (4, 7163710), (5, 5730968), (8, 3581855), (10, 2865484), (20, 1432742), (40, 716371), (569, 50360), (1138, 25180), (1259, 22760), (2276, 12590), (2518, 11380), (2845, 10072), (4552, 6295), (5036, 5690)]