81390832

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15749}}^1$

素因数の和:15793

約数の個数: 40

約数和(自身を含む): 175770000

約数和(自身を除く): 94379168

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 15749, 31498, 62996, 125992, 251984, 267733, 299231, 535466, 598462, 1070932, 1196924, 2141864, 2393848, 4283728, 4787696, 5086927, 10173854, 20347708, 40695416, 81390832]

約数ペア:

[(1, 81390832), (2, 40695416), (4, 20347708), (8, 10173854), (16, 5086927), (17, 4787696), (19, 4283728), (34, 2393848), (38, 2141864), (68, 1196924), (76, 1070932), (136, 598462), (152, 535466), (272, 299231), (304, 267733), (323, 251984), (646, 125992), (1292, 62996), (2584, 31498), (5168, 15749)]