28920180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2663}}^1$

素因数の和:2856

約数の個数: 48

約数和(自身を含む): 81454464

約数和(自身を除く): 52534284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 181, 362, 543, 724, 905, 1086, 1810, 2172, 2663, 2715, 3620, 5326, 5430, 7989, 10652, 10860, 13315, 15978, 26630, 31956, 39945, 53260, 79890, 159780, 482003, 964006, 1446009, 1928012, 2410015, 2892018, 4820030, 5784036, 7230045, 9640060, 14460090, 28920180]

約数ペア:

[(1, 28920180), (2, 14460090), (3, 9640060), (4, 7230045), (5, 5784036), (6, 4820030), (10, 2892018), (12, 2410015), (15, 1928012), (20, 1446009), (30, 964006), (60, 482003), (181, 159780), (362, 79890), (543, 53260), (724, 39945), (905, 31956), (1086, 26630), (1810, 15978), (2172, 13315), (2663, 10860), (2715, 10652), (3620, 7989), (5326, 5430)]