128439350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197599}}^1$

素因数の和:197624

約数の個数: 24

約数和(自身を含む): 257275200

約数和(自身を除く): 128835850

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 197599, 395198, 987995, 1975990, 2568787, 4939975, 5137574, 9879950, 12843935, 25687870, 64219675, 128439350]

約数ペア:

[(1, 128439350), (2, 64219675), (5, 25687870), (10, 12843935), (13, 9879950), (25, 5137574), (26, 4939975), (50, 2568787), (65, 1975990), (130, 987995), (325, 395198), (650, 197599)]