88181820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11393}}^1$

素因数の和:11451

約数の個数: 72

約数和(自身を含む): 273729456

約数和(自身を除く): 185547636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 11393, 22786, 34179, 45572, 56965, 68358, 102537, 113930, 136716, 170895, 205074, 227860, 341790, 410148, 489899, 512685, 683580, 979798, 1025370, 1469697, 1959596, 2050740, 2449495, 2939394, 4409091, 4898990, 5878788, 7348485, 8818182, 9797980, 14696970, 17636364, 22045455, 29393940, 44090910, 88181820]

約数ペア:

[(1, 88181820), (2, 44090910), (3, 29393940), (4, 22045455), (5, 17636364), (6, 14696970), (9, 9797980), (10, 8818182), (12, 7348485), (15, 5878788), (18, 4898990), (20, 4409091), (30, 2939394), (36, 2449495), (43, 2050740), (45, 1959596), (60, 1469697), (86, 1025370), (90, 979798), (129, 683580), (172, 512685), (180, 489899), (215, 410148), (258, 341790), (387, 227860), (430, 205074), (516, 170895), (645, 136716), (774, 113930), (860, 102537), (1290, 68358), (1548, 56965), (1935, 45572), (2580, 34179), (3870, 22786), (7740, 11393)]