28904840

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4177}}^1$

素因数の和:4361

約数の個数: 32

約数和(自身を含む): 65427480

約数和(自身を除く): 36522640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 4177, 6920, 8354, 16708, 20885, 33416, 41770, 83540, 167080, 722621, 1445242, 2890484, 3613105, 5780968, 7226210, 14452420, 28904840]

約数ペア:

[(1, 28904840), (2, 14452420), (4, 7226210), (5, 5780968), (8, 3613105), (10, 2890484), (20, 1445242), (40, 722621), (173, 167080), (346, 83540), (692, 41770), (865, 33416), (1384, 20885), (1730, 16708), (3460, 8354), (4177, 6920)]