81415456

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{373}}^1$

素因数の和:761

約数の個数: 48

約数和(自身を含む): 169646400

約数和(自身を除く): 88230944

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 359, 373, 608, 718, 746, 1436, 1492, 2872, 2984, 5744, 5968, 6821, 7087, 11488, 11936, 13642, 14174, 27284, 28348, 54568, 56696, 109136, 113392, 133907, 218272, 226784, 267814, 535628, 1071256, 2142512, 2544233, 4285024, 5088466, 10176932, 20353864, 40707728, 81415456]

約数ペア:

[(1, 81415456), (2, 40707728), (4, 20353864), (8, 10176932), (16, 5088466), (19, 4285024), (32, 2544233), (38, 2142512), (76, 1071256), (152, 535628), (304, 267814), (359, 226784), (373, 218272), (608, 133907), (718, 113392), (746, 109136), (1436, 56696), (1492, 54568), (2872, 28348), (2984, 27284), (5744, 14174), (5968, 13642), (6821, 11936), (7087, 11488)]