28805800

素因数分解:

$2^3\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1973}}^1$

素因数の和:2062

約数の個数: 48

約数和(自身を含む): 67925340

約数和(自身を除く): 39119540

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 146, 200, 292, 365, 584, 730, 1460, 1825, 1973, 2920, 3650, 3946, 7300, 7892, 9865, 14600, 15784, 19730, 39460, 49325, 78920, 98650, 144029, 197300, 288058, 394600, 576116, 720145, 1152232, 1440290, 2880580, 3600725, 5761160, 7201450, 14402900, 28805800]

約数ペア:

[(1, 28805800), (2, 14402900), (4, 7201450), (5, 5761160), (8, 3600725), (10, 2880580), (20, 1440290), (25, 1152232), (40, 720145), (50, 576116), (73, 394600), (100, 288058), (146, 197300), (200, 144029), (292, 98650), (365, 78920), (584, 49325), (730, 39460), (1460, 19730), (1825, 15784), (1973, 14600), (2920, 9865), (3650, 7892), (3946, 7300)]