18766275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 36206016

約数和(自身を除く): 17439741

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 43, 55, 69, 75, 115, 129, 165, 215, 253, 275, 345, 473, 529, 575, 645, 759, 825, 989, 1075, 1265, 1419, 1587, 1725, 2365, 2645, 2967, 3225, 3795, 4945, 5819, 6325, 7095, 7935, 10879, 11825, 13225, 14835, 17457, 18975, 22747, 24725, 29095, 32637, 35475, 39675, 54395, 68241, 74175, 87285, 113735, 145475, 163185, 250217, 271975, 341205, 436425, 568675, 750651, 815925, 1251085, 1706025, 3753255, 6255425, 18766275]

約数ペア:

[(1, 18766275), (3, 6255425), (5, 3753255), (11, 1706025), (15, 1251085), (23, 815925), (25, 750651), (33, 568675), (43, 436425), (55, 341205), (69, 271975), (75, 250217), (115, 163185), (129, 145475), (165, 113735), (215, 87285), (253, 74175), (275, 68241), (345, 54395), (473, 39675), (529, 35475), (575, 32637), (645, 29095), (759, 24725), (825, 22747), (989, 18975), (1075, 17457), (1265, 14835), (1419, 13225), (1587, 11825), (1725, 10879), (2365, 7935), (2645, 7095), (2967, 6325), (3225, 5819), (3795, 4945)]