28910505

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4007}}^1$

素因数の和:4065

約数の個数: 32

約数和(自身を含む): 51174144

約数和(自身を除く): 22263639

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 4007, 7215, 12021, 20035, 52091, 60105, 148259, 156273, 260455, 444777, 741295, 781365, 1927367, 2223885, 5782101, 9636835, 28910505]

約数ペア:

[(1, 28910505), (3, 9636835), (5, 5782101), (13, 2223885), (15, 1927367), (37, 781365), (39, 741295), (65, 444777), (111, 260455), (185, 156273), (195, 148259), (481, 60105), (555, 52091), (1443, 20035), (2405, 12021), (4007, 7215)]