20165511184

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{76519}}^1$

素因数の和:76728

約数の個数: 80

約数和(自身を含む): 48353294080

約数和(自身を除く): 28187782896

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 181, 182, 208, 362, 364, 724, 728, 1267, 1448, 1456, 2353, 2534, 2896, 4706, 5068, 9412, 10136, 16471, 18824, 20272, 32942, 37648, 65884, 76519, 131768, 153038, 263536, 306076, 535633, 612152, 994747, 1071266, 1224304, 1989494, 2142532, 3978988, 4285064, 6963229, 7957976, 8570128, 13849939, 13926458, 15915952, 27699878, 27852916, 55399756, 55705832, 96949573, 110799512, 111411664, 180049207, 193899146, 221599024, 360098414, 387798292, 720196828, 775596584, 1260344449, 1440393656, 1551193168, 2520688898, 2880787312, 5041377796, 10082755592, 20165511184]

約数ペア:

[(1, 20165511184), (2, 10082755592), (4, 5041377796), (7, 2880787312), (8, 2520688898), (13, 1551193168), (14, 1440393656), (16, 1260344449), (26, 775596584), (28, 720196828), (52, 387798292), (56, 360098414), (91, 221599024), (104, 193899146), (112, 180049207), (181, 111411664), (182, 110799512), (208, 96949573), (362, 55705832), (364, 55399756), (724, 27852916), (728, 27699878), (1267, 15915952), (1448, 13926458), (1456, 13849939), (2353, 8570128), (2534, 7957976), (2896, 6963229), (4706, 4285064), (5068, 3978988), (9412, 2142532), (10136, 1989494), (16471, 1224304), (18824, 1071266), (20272, 994747), (32942, 612152), (37648, 535633), (65884, 306076), (76519, 263536), (131768, 153038)]