18190700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 44997120

約数和(自身を除く): 26806420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 719, 1012, 1100, 1150, 1265, 1438, 2300, 2530, 2876, 3595, 5060, 6325, 7190, 7909, 12650, 14380, 15818, 16537, 17975, 25300, 31636, 33074, 35950, 39545, 66148, 71900, 79090, 82685, 158180, 165370, 181907, 197725, 330740, 363814, 395450, 413425, 727628, 790900, 826850, 909535, 1653700, 1819070, 3638140, 4547675, 9095350, 18190700]

約数ペア:

[(1, 18190700), (2, 9095350), (4, 4547675), (5, 3638140), (10, 1819070), (11, 1653700), (20, 909535), (22, 826850), (23, 790900), (25, 727628), (44, 413425), (46, 395450), (50, 363814), (55, 330740), (92, 197725), (100, 181907), (110, 165370), (115, 158180), (220, 82685), (230, 79090), (253, 71900), (275, 66148), (460, 39545), (506, 35950), (550, 33074), (575, 31636), (719, 25300), (1012, 17975), (1100, 16537), (1150, 15818), (1265, 14380), (1438, 12650), (2300, 7909), (2530, 7190), (2876, 6325), (3595, 5060)]