1282051280

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1\times {\mathrm{1087}}^1$

素因数の和:1764

約数の個数: 80

約数和(自身を含む): 3118086144

約数和(自身を除く): 1836034864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 641, 920, 1087, 1282, 1840, 2174, 2564, 3205, 4348, 5128, 5435, 6410, 8696, 10256, 10870, 12820, 14743, 17392, 21740, 25001, 25640, 29486, 43480, 50002, 51280, 58972, 73715, 86960, 100004, 117944, 125005, 147430, 200008, 235888, 250010, 294860, 400016, 500020, 589720, 696767, 1000040, 1179440, 1393534, 2000080, 2787068, 3483835, 5574136, 6967670, 11148272, 13935340, 16025641, 27870680, 32051282, 55741360, 64102564, 80128205, 128205128, 160256410, 256410256, 320512820, 641025640, 1282051280]

約数ペア:

[(1, 1282051280), (2, 641025640), (4, 320512820), (5, 256410256), (8, 160256410), (10, 128205128), (16, 80128205), (20, 64102564), (23, 55741360), (40, 32051282), (46, 27870680), (80, 16025641), (92, 13935340), (115, 11148272), (184, 6967670), (230, 5574136), (368, 3483835), (460, 2787068), (641, 2000080), (920, 1393534), (1087, 1179440), (1282, 1000040), (1840, 696767), (2174, 589720), (2564, 500020), (3205, 400016), (4348, 294860), (5128, 250010), (5435, 235888), (6410, 200008), (8696, 147430), (10256, 125005), (10870, 117944), (12820, 100004), (14743, 86960), (17392, 73715), (21740, 58972), (25001, 51280), (25640, 50002), (29486, 43480)]