20764072

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1283}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 47302560

約数和(自身を除く): 26538488

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 289, 476, 578, 952, 1156, 1283, 2023, 2312, 2566, 4046, 5132, 8092, 8981, 10264, 16184, 17962, 21811, 35924, 43622, 71848, 87244, 152677, 174488, 305354, 370787, 610708, 741574, 1221416, 1483148, 2595509, 2966296, 5191018, 10382036, 20764072]

約数ペア:

[(1, 20764072), (2, 10382036), (4, 5191018), (7, 2966296), (8, 2595509), (14, 1483148), (17, 1221416), (28, 741574), (34, 610708), (56, 370787), (68, 305354), (119, 174488), (136, 152677), (238, 87244), (289, 71848), (476, 43622), (578, 35924), (952, 21811), (1156, 17962), (1283, 16184), (2023, 10264), (2312, 8981), (2566, 8092), (4046, 5132)]