1987890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:143

約数の個数: 64

約数和(自身を含む): 5170176

約数和(自身を除く): 3182286

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 43, 46, 67, 69, 86, 115, 129, 134, 138, 201, 215, 230, 258, 335, 345, 402, 430, 645, 670, 690, 989, 1005, 1290, 1541, 1978, 2010, 2881, 2967, 3082, 4623, 4945, 5762, 5934, 7705, 8643, 9246, 9890, 14405, 14835, 15410, 17286, 23115, 28810, 29670, 43215, 46230, 66263, 86430, 132526, 198789, 331315, 397578, 662630, 993945, 1987890]

約数ペア:

[(1, 1987890), (2, 993945), (3, 662630), (5, 397578), (6, 331315), (10, 198789), (15, 132526), (23, 86430), (30, 66263), (43, 46230), (46, 43215), (67, 29670), (69, 28810), (86, 23115), (115, 17286), (129, 15410), (134, 14835), (138, 14405), (201, 9890), (215, 9246), (230, 8643), (258, 7705), (335, 5934), (345, 5762), (402, 4945), (430, 4623), (645, 3082), (670, 2967), (690, 2881), (989, 2010), (1005, 1978), (1290, 1541)]