19464760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9931}}^1$

素因数の和:9956

約数の個数: 48

約数和(自身を含む): 50951160

約数和(自身を除く): 31486400

約数列:

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

約数ペア:

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