2783281720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{36109}}^1$

素因数の和:36208

約数の個数: 64

約数和(自身を含む): 6551798400

約数和(自身を除く): 3768516680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 188, 205, 235, 328, 376, 410, 470, 820, 940, 1640, 1880, 1927, 3854, 7708, 9635, 15416, 19270, 36109, 38540, 72218, 77080, 144436, 180545, 288872, 361090, 722180, 1444360, 1480469, 1697123, 2960938, 3394246, 5921876, 6788492, 7402345, 8485615, 11843752, 13576984, 14804690, 16971230, 29609380, 33942460, 59218760, 67884920, 69582043, 139164086, 278328172, 347910215, 556656344, 695820430, 1391640860, 2783281720]

約数ペア:

[(1, 2783281720), (2, 1391640860), (4, 695820430), (5, 556656344), (8, 347910215), (10, 278328172), (20, 139164086), (40, 69582043), (41, 67884920), (47, 59218760), (82, 33942460), (94, 29609380), (164, 16971230), (188, 14804690), (205, 13576984), (235, 11843752), (328, 8485615), (376, 7402345), (410, 6788492), (470, 5921876), (820, 3394246), (940, 2960938), (1640, 1697123), (1880, 1480469), (1927, 1444360), (3854, 722180), (7708, 361090), (9635, 288872), (15416, 180545), (19270, 144436), (36109, 77080), (38540, 72218)]