159380920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1627}}^1$

素因数の和:1748

約数の個数: 64

約数和(自身を含む): 375091200

約数和(自身を除く): 215710280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 790, 1240, 1580, 1627, 2449, 3160, 3254, 4898, 6508, 8135, 9796, 12245, 13016, 16270, 19592, 24490, 32540, 48980, 50437, 65080, 97960, 100874, 128533, 201748, 252185, 257066, 403496, 504370, 514132, 642665, 1008740, 1028264, 1285330, 2017480, 2570660, 3984523, 5141320, 7969046, 15938092, 19922615, 31876184, 39845230, 79690460, 159380920]

約数ペア:

[(1, 159380920), (2, 79690460), (4, 39845230), (5, 31876184), (8, 19922615), (10, 15938092), (20, 7969046), (31, 5141320), (40, 3984523), (62, 2570660), (79, 2017480), (124, 1285330), (155, 1028264), (158, 1008740), (248, 642665), (310, 514132), (316, 504370), (395, 403496), (620, 257066), (632, 252185), (790, 201748), (1240, 128533), (1580, 100874), (1627, 97960), (2449, 65080), (3160, 50437), (3254, 48980), (4898, 32540), (6508, 24490), (8135, 19592), (9796, 16270), (12245, 13016)]