25258160

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2011}}^1$

素因数の和:2181

約数の個数: 40

約数和(自身を含む): 59128656

約数和(自身を除く): 33870496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2011, 2512, 3140, 4022, 6280, 8044, 10055, 12560, 16088, 20110, 32176, 40220, 80440, 160880, 315727, 631454, 1262908, 1578635, 2525816, 3157270, 5051632, 6314540, 12629080, 25258160]

約数ペア:

[(1, 25258160), (2, 12629080), (4, 6314540), (5, 5051632), (8, 3157270), (10, 2525816), (16, 1578635), (20, 1262908), (40, 631454), (80, 315727), (157, 160880), (314, 80440), (628, 40220), (785, 32176), (1256, 20110), (1570, 16088), (2011, 12560), (2512, 10055), (3140, 8044), (4022, 6280)]