80438988

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{19543}}^1$

素因数の和:19571

約数の個数: 48

約数和(自身を含む): 218892800

約数和(自身を除く): 138453812

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 19543, 39086, 58629, 78172, 117258, 136801, 234516, 273602, 410403, 547204, 820806, 957607, 1641612, 1915214, 2872821, 3830428, 5745642, 6703249, 11491284, 13406498, 20109747, 26812996, 40219494, 80438988]

約数ペア:

[(1, 80438988), (2, 40219494), (3, 26812996), (4, 20109747), (6, 13406498), (7, 11491284), (12, 6703249), (14, 5745642), (21, 3830428), (28, 2872821), (42, 1915214), (49, 1641612), (84, 957607), (98, 820806), (147, 547204), (196, 410403), (294, 273602), (343, 234516), (588, 136801), (686, 117258), (1029, 78172), (1372, 58629), (2058, 39086), (4116, 19543)]