25454920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8963}}^1$

素因数の和:9045

約数の個数: 32

約数和(自身を含む): 58086720

約数和(自身を除く): 32631800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 8963, 17926, 35852, 44815, 71704, 89630, 179260, 358520, 636373, 1272746, 2545492, 3181865, 5090984, 6363730, 12727460, 25454920]

約数ペア:

[(1, 25454920), (2, 12727460), (4, 6363730), (5, 5090984), (8, 3181865), (10, 2545492), (20, 1272746), (40, 636373), (71, 358520), (142, 179260), (284, 89630), (355, 71704), (568, 44815), (710, 35852), (1420, 17926), (2840, 8963)]