51325880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 123171840

約数和(自身を除く): 71845960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 92, 94, 115, 184, 188, 230, 235, 376, 460, 470, 920, 940, 1081, 1187, 1880, 2162, 2374, 4324, 4748, 5405, 5935, 8648, 9496, 10810, 11870, 21620, 23740, 27301, 43240, 47480, 54602, 55789, 109204, 111578, 136505, 218408, 223156, 273010, 278945, 446312, 546020, 557890, 1092040, 1115780, 1283147, 2231560, 2566294, 5132588, 6415735, 10265176, 12831470, 25662940, 51325880]

約数ペア:

[(1, 51325880), (2, 25662940), (4, 12831470), (5, 10265176), (8, 6415735), (10, 5132588), (20, 2566294), (23, 2231560), (40, 1283147), (46, 1115780), (47, 1092040), (92, 557890), (94, 546020), (115, 446312), (184, 278945), (188, 273010), (230, 223156), (235, 218408), (376, 136505), (460, 111578), (470, 109204), (920, 55789), (940, 54602), (1081, 47480), (1187, 43240), (1880, 27301), (2162, 23740), (2374, 21620), (4324, 11870), (4748, 10810), (5405, 9496), (5935, 8648)]