15706280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 37028880

約数和(自身を除く): 21322600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 157, 164, 205, 244, 305, 314, 328, 410, 488, 610, 628, 785, 820, 1220, 1256, 1570, 1640, 2440, 2501, 3140, 5002, 6280, 6437, 9577, 10004, 12505, 12874, 19154, 20008, 25010, 25748, 32185, 38308, 47885, 50020, 51496, 64370, 76616, 95770, 100040, 128740, 191540, 257480, 383080, 392657, 785314, 1570628, 1963285, 3141256, 3926570, 7853140, 15706280]

約数ペア:

[(1, 15706280), (2, 7853140), (4, 3926570), (5, 3141256), (8, 1963285), (10, 1570628), (20, 785314), (40, 392657), (41, 383080), (61, 257480), (82, 191540), (122, 128740), (157, 100040), (164, 95770), (205, 76616), (244, 64370), (305, 51496), (314, 50020), (328, 47885), (410, 38308), (488, 32185), (610, 25748), (628, 25010), (785, 20008), (820, 19154), (1220, 12874), (1256, 12505), (1570, 10004), (1640, 9577), (2440, 6437), (2501, 6280), (3140, 5002)]