19796530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{773}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 38619504

約数和(自身を除く): 18822974

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 773, 985, 1546, 1970, 2561, 3865, 5122, 7730, 10049, 12805, 20098, 25610, 50245, 100490, 152281, 304562, 761405, 1522810, 1979653, 3959306, 9898265, 19796530]

約数ペア:

[(1, 19796530), (2, 9898265), (5, 3959306), (10, 1979653), (13, 1522810), (26, 761405), (65, 304562), (130, 152281), (197, 100490), (394, 50245), (773, 25610), (985, 20098), (1546, 12805), (1970, 10049), (2561, 7730), (3865, 5122)]