71780048

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{66959}}^1$

素因数の和:67034

約数の個数: 20

約数和(自身を含む): 141151680

約数和(自身を除く): 69371632

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 66959, 133918, 267836, 535672, 1071344, 4486253, 8972506, 17945012, 35890024, 71780048]

約数ペア:

[(1, 71780048), (2, 35890024), (4, 17945012), (8, 8972506), (16, 4486253), (67, 1071344), (134, 535672), (268, 267836), (536, 133918), (1072, 66959)]