20424570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 30668934

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 71, 86, 129, 142, 213, 215, 223, 258, 355, 426, 430, 446, 645, 669, 710, 1065, 1115, 1290, 1338, 2130, 2230, 3053, 3345, 6106, 6690, 9159, 9589, 15265, 15833, 18318, 19178, 28767, 30530, 31666, 45795, 47499, 47945, 57534, 79165, 91590, 94998, 95890, 143835, 158330, 237495, 287670, 474990, 680819, 1361638, 2042457, 3404095, 4084914, 6808190, 10212285, 20424570]

約数ペア:

[(1, 20424570), (2, 10212285), (3, 6808190), (5, 4084914), (6, 3404095), (10, 2042457), (15, 1361638), (30, 680819), (43, 474990), (71, 287670), (86, 237495), (129, 158330), (142, 143835), (213, 95890), (215, 94998), (223, 91590), (258, 79165), (355, 57534), (426, 47945), (430, 47499), (446, 45795), (645, 31666), (669, 30530), (710, 28767), (1065, 19178), (1115, 18318), (1290, 15833), (1338, 15265), (2130, 9589), (2230, 9159), (3053, 6690), (3345, 6106)]