138880420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 349977600

約数和(自身を除く): 211097180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 79, 116, 140, 145, 158, 203, 290, 316, 395, 406, 433, 553, 580, 790, 812, 866, 1015, 1106, 1580, 1732, 2030, 2165, 2212, 2291, 2765, 3031, 4060, 4330, 4582, 5530, 6062, 8660, 9164, 11060, 11455, 12124, 12557, 15155, 16037, 22910, 25114, 30310, 32074, 34207, 45820, 50228, 60620, 62785, 64148, 68414, 80185, 87899, 125570, 136828, 160370, 171035, 175798, 239449, 251140, 320740, 342070, 351596, 439495, 478898, 684140, 878990, 957796, 992003, 1197245, 1757980, 1984006, 2394490, 3968012, 4788980, 4960015, 6944021, 9920030, 13888042, 19840060, 27776084, 34720105, 69440210, 138880420]

約数ペア:

[(1, 138880420), (2, 69440210), (4, 34720105), (5, 27776084), (7, 19840060), (10, 13888042), (14, 9920030), (20, 6944021), (28, 4960015), (29, 4788980), (35, 3968012), (58, 2394490), (70, 1984006), (79, 1757980), (116, 1197245), (140, 992003), (145, 957796), (158, 878990), (203, 684140), (290, 478898), (316, 439495), (395, 351596), (406, 342070), (433, 320740), (553, 251140), (580, 239449), (790, 175798), (812, 171035), (866, 160370), (1015, 136828), (1106, 125570), (1580, 87899), (1732, 80185), (2030, 68414), (2165, 64148), (2212, 62785), (2291, 60620), (2765, 50228), (3031, 45820), (4060, 34207), (4330, 32074), (4582, 30310), (5530, 25114), (6062, 22910), (8660, 16037), (9164, 15155), (11060, 12557), (11455, 12124)]