28138260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2591}}^1$

素因数の和:2784

約数の個数: 48

約数和(自身を含む): 79252992

約数和(自身を除く): 51114732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 181, 362, 543, 724, 905, 1086, 1810, 2172, 2591, 2715, 3620, 5182, 5430, 7773, 10364, 10860, 12955, 15546, 25910, 31092, 38865, 51820, 77730, 155460, 468971, 937942, 1406913, 1875884, 2344855, 2813826, 4689710, 5627652, 7034565, 9379420, 14069130, 28138260]

約数ペア:

[(1, 28138260), (2, 14069130), (3, 9379420), (4, 7034565), (5, 5627652), (6, 4689710), (10, 2813826), (12, 2344855), (15, 1875884), (20, 1406913), (30, 937942), (60, 468971), (181, 155460), (362, 77730), (543, 51820), (724, 38865), (905, 31092), (1086, 25910), (1810, 15546), (2172, 12955), (2591, 10860), (2715, 10364), (3620, 7773), (5182, 5430)]