16921120

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6221}}^1$

素因数の和:6253

約数の個数: 48

約数和(自身を含む): 42334488

約数和(自身を除く): 25413368

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 6221, 12442, 24884, 31105, 49768, 62210, 99536, 105757, 124420, 199072, 211514, 248840, 423028, 497680, 528785, 846056, 995360, 1057570, 1692112, 2115140, 3384224, 4230280, 8460560, 16921120]

約数ペア:

[(1, 16921120), (2, 8460560), (4, 4230280), (5, 3384224), (8, 2115140), (10, 1692112), (16, 1057570), (17, 995360), (20, 846056), (32, 528785), (34, 497680), (40, 423028), (68, 248840), (80, 211514), (85, 199072), (136, 124420), (160, 105757), (170, 99536), (272, 62210), (340, 49768), (544, 31105), (680, 24884), (1360, 12442), (2720, 6221)]