78450640

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5081}}^1$

素因数の和:5287

約数の個数: 40

約数和(自身を含む): 183378888

約数和(自身を除く): 104928248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 5081, 7720, 10162, 15440, 20324, 25405, 40648, 50810, 81296, 101620, 203240, 406480, 980633, 1961266, 3922532, 4903165, 7845064, 9806330, 15690128, 19612660, 39225320, 78450640]

約数ペア:

[(1, 78450640), (2, 39225320), (4, 19612660), (5, 15690128), (8, 9806330), (10, 7845064), (16, 4903165), (20, 3922532), (40, 1961266), (80, 980633), (193, 406480), (386, 203240), (772, 101620), (965, 81296), (1544, 50810), (1930, 40648), (3088, 25405), (3860, 20324), (5081, 15440), (7720, 10162)]