178487120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2293}}^1$

素因数の和:2452

約数の個数: 80

約数和(自身を含む): 477886080

約数和(自身を除く): 299398960

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, 2293, 2780, 3892, 4586, 4865, 5560, 7784, 9172, 9730, 11120, 11465, 15568, 16051, 18344, 19460, 22930, 32102, 36688, 38920, 45860, 64204, 77840, 80255, 91720, 128408, 160510, 183440, 256816, 318727, 321020, 637454, 642040, 1274908, 1284080, 1593635, 2231089, 2549816, 3187270, 4462178, 5099632, 6374540, 8924356, 11155445, 12749080, 17848712, 22310890, 25498160, 35697424, 44621780, 89243560, 178487120]

約数ペア:

[(1, 178487120), (2, 89243560), (4, 44621780), (5, 35697424), (7, 25498160), (8, 22310890), (10, 17848712), (14, 12749080), (16, 11155445), (20, 8924356), (28, 6374540), (35, 5099632), (40, 4462178), (56, 3187270), (70, 2549816), (80, 2231089), (112, 1593635), (139, 1284080), (140, 1274908), (278, 642040), (280, 637454), (556, 321020), (560, 318727), (695, 256816), (973, 183440), (1112, 160510), (1390, 128408), (1946, 91720), (2224, 80255), (2293, 77840), (2780, 64204), (3892, 45860), (4586, 38920), (4865, 36688), (5560, 32102), (7784, 22930), (9172, 19460), (9730, 18344), (11120, 16051), (11465, 15568)]