28372760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54563}}^1$

素因数の和:54587

約数の個数: 32

約数和(自身を含む): 68750640

約数和(自身を除く): 40377880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54563, 109126, 218252, 272815, 436504, 545630, 709319, 1091260, 1418638, 2182520, 2837276, 3546595, 5674552, 7093190, 14186380, 28372760]

約数ペア:

[(1, 28372760), (2, 14186380), (4, 7093190), (5, 5674552), (8, 3546595), (10, 2837276), (13, 2182520), (20, 1418638), (26, 1091260), (40, 709319), (52, 545630), (65, 436504), (104, 272815), (130, 218252), (260, 109126), (520, 54563)]