20577004

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 23452436

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 139, 238, 278, 311, 476, 556, 622, 973, 1244, 1946, 2177, 2363, 3892, 4354, 4726, 5287, 8708, 9452, 10574, 16541, 21148, 33082, 37009, 43229, 66164, 74018, 86458, 148036, 172916, 302603, 605206, 734893, 1210412, 1469786, 2939572, 5144251, 10288502, 20577004]

約数ペア:

[(1, 20577004), (2, 10288502), (4, 5144251), (7, 2939572), (14, 1469786), (17, 1210412), (28, 734893), (34, 605206), (68, 302603), (119, 172916), (139, 148036), (238, 86458), (278, 74018), (311, 66164), (476, 43229), (556, 37009), (622, 33082), (973, 21148), (1244, 16541), (1946, 10574), (2177, 9452), (2363, 8708), (3892, 5287), (4354, 4726)]