38929520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{9931}}^1$

素因数の和:9958

約数の個数: 60

約数和(自身を含む): 105299064

約数和(自身を除く): 66369544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 9931, 19862, 39724, 49655, 69517, 79448, 99310, 139034, 158896, 198620, 278068, 347585, 397240, 486619, 556136, 695170, 794480, 973238, 1112272, 1390340, 1946476, 2433095, 2780680, 3892952, 4866190, 5561360, 7785904, 9732380, 19464760, 38929520]

約数ペア:

[(1, 38929520), (2, 19464760), (4, 9732380), (5, 7785904), (7, 5561360), (8, 4866190), (10, 3892952), (14, 2780680), (16, 2433095), (20, 1946476), (28, 1390340), (35, 1112272), (40, 973238), (49, 794480), (56, 695170), (70, 556136), (80, 486619), (98, 397240), (112, 347585), (140, 278068), (196, 198620), (245, 158896), (280, 139034), (392, 99310), (490, 79448), (560, 69517), (784, 49655), (980, 39724), (1960, 19862), (3920, 9931)]