4006520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 10584000

約数和(自身を除く): 6577480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 349, 410, 574, 698, 820, 1148, 1396, 1435, 1640, 1745, 2296, 2443, 2792, 2870, 3490, 4886, 5740, 6980, 9772, 11480, 12215, 13960, 14309, 19544, 24430, 28618, 48860, 57236, 71545, 97720, 100163, 114472, 143090, 200326, 286180, 400652, 500815, 572360, 801304, 1001630, 2003260, 4006520]

約数ペア:

[(1, 4006520), (2, 2003260), (4, 1001630), (5, 801304), (7, 572360), (8, 500815), (10, 400652), (14, 286180), (20, 200326), (28, 143090), (35, 114472), (40, 100163), (41, 97720), (56, 71545), (70, 57236), (82, 48860), (140, 28618), (164, 24430), (205, 19544), (280, 14309), (287, 13960), (328, 12215), (349, 11480), (410, 9772), (574, 6980), (698, 5740), (820, 4886), (1148, 3490), (1396, 2870), (1435, 2792), (1640, 2443), (1745, 2296)]