27998780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73681}}^1$

素因数の和:73709

約数の個数: 24

約数和(自身を含む): 61892880

約数和(自身を除く): 33894100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 73681, 147362, 294724, 368405, 736810, 1399939, 1473620, 2799878, 5599756, 6999695, 13999390, 27998780]

約数ペア:

[(1, 27998780), (2, 13999390), (4, 6999695), (5, 5599756), (10, 2799878), (19, 1473620), (20, 1399939), (38, 736810), (76, 368405), (95, 294724), (190, 147362), (380, 73681)]