20265100

素因数分解:

$2^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1061}}^1$

素因数の和:1266

約数の個数: 36

約数和(自身を含む): 44247168

約数和(自身を除く): 23982068

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 191, 382, 764, 955, 1061, 1910, 2122, 3820, 4244, 4775, 5305, 9550, 10610, 19100, 21220, 26525, 53050, 106100, 202651, 405302, 810604, 1013255, 2026510, 4053020, 5066275, 10132550, 20265100]

約数ペア:

[(1, 20265100), (2, 10132550), (4, 5066275), (5, 4053020), (10, 2026510), (20, 1013255), (25, 810604), (50, 405302), (100, 202651), (191, 106100), (382, 53050), (764, 26525), (955, 21220), (1061, 19100), (1910, 10610), (2122, 9550), (3820, 5305), (4244, 4775)]