156815740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{827}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 347760000

約数和(自身を除く): 190944260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 499, 827, 998, 1654, 1996, 2495, 3308, 4135, 4990, 8270, 9481, 9980, 15713, 16540, 18962, 31426, 37924, 47405, 62852, 78565, 94810, 157130, 189620, 314260, 412673, 825346, 1650692, 2063365, 4126730, 7840787, 8253460, 15681574, 31363148, 39203935, 78407870, 156815740]

約数ペア:

[(1, 156815740), (2, 78407870), (4, 39203935), (5, 31363148), (10, 15681574), (19, 8253460), (20, 7840787), (38, 4126730), (76, 2063365), (95, 1650692), (190, 825346), (380, 412673), (499, 314260), (827, 189620), (998, 157130), (1654, 94810), (1996, 78565), (2495, 62852), (3308, 47405), (4135, 37924), (4990, 31426), (8270, 18962), (9481, 16540), (9980, 15713)]