28245540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1151}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 79349760

約数和(自身を除く): 51104220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 818, 1151, 1227, 1636, 2045, 2302, 2454, 3453, 4090, 4604, 4908, 5755, 6135, 6906, 8180, 11510, 12270, 13812, 17265, 23020, 24540, 34530, 69060, 470759, 941518, 1412277, 1883036, 2353795, 2824554, 4707590, 5649108, 7061385, 9415180, 14122770, 28245540]

約数ペア:

[(1, 28245540), (2, 14122770), (3, 9415180), (4, 7061385), (5, 5649108), (6, 4707590), (10, 2824554), (12, 2353795), (15, 1883036), (20, 1412277), (30, 941518), (60, 470759), (409, 69060), (818, 34530), (1151, 24540), (1227, 23020), (1636, 17265), (2045, 13812), (2302, 12270), (2454, 11510), (3453, 8180), (4090, 6906), (4604, 6135), (4908, 5755)]