164531440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{389}}^1$

素因数の和:730

約数の個数: 80

約数和(自身を含む): 407384640

約数和(自身を除く): 242853200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 311, 340, 389, 622, 680, 778, 1244, 1360, 1555, 1556, 1945, 2488, 3110, 3112, 3890, 4976, 5287, 6220, 6224, 6613, 7780, 10574, 12440, 13226, 15560, 21148, 24880, 26435, 26452, 31120, 33065, 42296, 52870, 52904, 66130, 84592, 105740, 105808, 120979, 132260, 211480, 241958, 264520, 422960, 483916, 529040, 604895, 967832, 1209790, 1935664, 2056643, 2419580, 4113286, 4839160, 8226572, 9678320, 10283215, 16453144, 20566430, 32906288, 41132860, 82265720, 164531440]

約数ペア:

[(1, 164531440), (2, 82265720), (4, 41132860), (5, 32906288), (8, 20566430), (10, 16453144), (16, 10283215), (17, 9678320), (20, 8226572), (34, 4839160), (40, 4113286), (68, 2419580), (80, 2056643), (85, 1935664), (136, 1209790), (170, 967832), (272, 604895), (311, 529040), (340, 483916), (389, 422960), (622, 264520), (680, 241958), (778, 211480), (1244, 132260), (1360, 120979), (1555, 105808), (1556, 105740), (1945, 84592), (2488, 66130), (3110, 52904), (3112, 52870), (3890, 42296), (4976, 33065), (5287, 31120), (6220, 26452), (6224, 26435), (6613, 24880), (7780, 21148), (10574, 15560), (12440, 13226)]