81681510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2753}}^1$

素因数の和:2829

約数の個数: 64

約数和(自身を含む): 209392128

約数和(自身を除く): 127710618

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 43, 46, 69, 86, 115, 129, 138, 215, 230, 258, 345, 430, 645, 690, 989, 1290, 1978, 2753, 2967, 4945, 5506, 5934, 8259, 9890, 13765, 14835, 16518, 27530, 29670, 41295, 63319, 82590, 118379, 126638, 189957, 236758, 316595, 355137, 379914, 591895, 633190, 710274, 949785, 1183790, 1775685, 1899570, 2722717, 3551370, 5445434, 8168151, 13613585, 16336302, 27227170, 40840755, 81681510]

約数ペア:

[(1, 81681510), (2, 40840755), (3, 27227170), (5, 16336302), (6, 13613585), (10, 8168151), (15, 5445434), (23, 3551370), (30, 2722717), (43, 1899570), (46, 1775685), (69, 1183790), (86, 949785), (115, 710274), (129, 633190), (138, 591895), (215, 379914), (230, 355137), (258, 316595), (345, 236758), (430, 189957), (645, 126638), (690, 118379), (989, 82590), (1290, 63319), (1978, 41295), (2753, 29670), (2967, 27530), (4945, 16518), (5506, 14835), (5934, 13765), (8259, 9890)]