20666200

素因数分解:

$2^3\times 5^2\times {\mathrm{191}}^1\times {\mathrm{541}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 48389760

約数和(自身を除く): 27723560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 191, 200, 382, 541, 764, 955, 1082, 1528, 1910, 2164, 2705, 3820, 4328, 4775, 5410, 7640, 9550, 10820, 13525, 19100, 21640, 27050, 38200, 54100, 103331, 108200, 206662, 413324, 516655, 826648, 1033310, 2066620, 2583275, 4133240, 5166550, 10333100, 20666200]

約数ペア:

[(1, 20666200), (2, 10333100), (4, 5166550), (5, 4133240), (8, 2583275), (10, 2066620), (20, 1033310), (25, 826648), (40, 516655), (50, 413324), (100, 206662), (191, 108200), (200, 103331), (382, 54100), (541, 38200), (764, 27050), (955, 21640), (1082, 19100), (1528, 13525), (1910, 10820), (2164, 9550), (2705, 7640), (3820, 5410), (4328, 4775)]