81060400

素因数分解:

$2^4\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1061}}^1$

素因数の和:1270

約数の個数: 60

約数和(自身を含む): 195951744

約数和(自身を除く): 114891344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 191, 200, 382, 400, 764, 955, 1061, 1528, 1910, 2122, 3056, 3820, 4244, 4775, 5305, 7640, 8488, 9550, 10610, 15280, 16976, 19100, 21220, 26525, 38200, 42440, 53050, 76400, 84880, 106100, 202651, 212200, 405302, 424400, 810604, 1013255, 1621208, 2026510, 3242416, 4053020, 5066275, 8106040, 10132550, 16212080, 20265100, 40530200, 81060400]

約数ペア:

[(1, 81060400), (2, 40530200), (4, 20265100), (5, 16212080), (8, 10132550), (10, 8106040), (16, 5066275), (20, 4053020), (25, 3242416), (40, 2026510), (50, 1621208), (80, 1013255), (100, 810604), (191, 424400), (200, 405302), (382, 212200), (400, 202651), (764, 106100), (955, 84880), (1061, 76400), (1528, 53050), (1910, 42440), (2122, 38200), (3056, 26525), (3820, 21220), (4244, 19100), (4775, 16976), (5305, 15280), (7640, 10610), (8488, 9550)]