20752550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4561}}^1$

素因数の和:4593

約数の個数: 48

約数和(自身を含む): 47517792

約数和(自身を除く): 26765242

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 4561, 9122, 22805, 31927, 45610, 59293, 63854, 114025, 118586, 159635, 228050, 296465, 319270, 415051, 592930, 798175, 830102, 1482325, 1596350, 2075255, 2964650, 4150510, 10376275, 20752550]

約数ペア:

[(1, 20752550), (2, 10376275), (5, 4150510), (7, 2964650), (10, 2075255), (13, 1596350), (14, 1482325), (25, 830102), (26, 798175), (35, 592930), (50, 415051), (65, 319270), (70, 296465), (91, 228050), (130, 159635), (175, 118586), (182, 114025), (325, 63854), (350, 59293), (455, 45610), (650, 31927), (910, 22805), (2275, 9122), (4550, 4561)]