181600720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2333}}^1$

素因数の和:2492

約数の個数: 80

約数和(自身を含む): 486218880

約数和(自身を除く): 304618160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1112, 1390, 1946, 2224, 2333, 2780, 3892, 4666, 4865, 5560, 7784, 9332, 9730, 11120, 11665, 15568, 16331, 18664, 19460, 23330, 32662, 37328, 38920, 46660, 65324, 77840, 81655, 93320, 130648, 163310, 186640, 261296, 324287, 326620, 648574, 653240, 1297148, 1306480, 1621435, 2270009, 2594296, 3242870, 4540018, 5188592, 6485740, 9080036, 11350045, 12971480, 18160072, 22700090, 25942960, 36320144, 45400180, 90800360, 181600720]

約数ペア:

[(1, 181600720), (2, 90800360), (4, 45400180), (5, 36320144), (7, 25942960), (8, 22700090), (10, 18160072), (14, 12971480), (16, 11350045), (20, 9080036), (28, 6485740), (35, 5188592), (40, 4540018), (56, 3242870), (70, 2594296), (80, 2270009), (112, 1621435), (139, 1306480), (140, 1297148), (278, 653240), (280, 648574), (556, 326620), (560, 324287), (695, 261296), (973, 186640), (1112, 163310), (1390, 130648), (1946, 93320), (2224, 81655), (2333, 77840), (2780, 65324), (3892, 46660), (4666, 38920), (4865, 37328), (5560, 32662), (7784, 23330), (9332, 19460), (9730, 18664), (11120, 16331), (11665, 15568)]