20478590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2243}}^1$

素因数の和:2344

約数の個数: 32

約数和(自身を含む): 40715136

約数和(自身を除く): 20236546

約数列:

[1, 2, 5, 10, 11, 22, 55, 83, 110, 166, 415, 830, 913, 1826, 2243, 4486, 4565, 9130, 11215, 22430, 24673, 49346, 123365, 186169, 246730, 372338, 930845, 1861690, 2047859, 4095718, 10239295, 20478590]

約数ペア:

[(1, 20478590), (2, 10239295), (5, 4095718), (10, 2047859), (11, 1861690), (22, 930845), (55, 372338), (83, 246730), (110, 186169), (166, 123365), (415, 49346), (830, 24673), (913, 22430), (1826, 11215), (2243, 9130), (4486, 4565)]