18540840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{421}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 55906560

約数和(自身を除く): 37365720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 367, 421, 734, 842, 1101, 1263, 1468, 1684, 1835, 2105, 2202, 2526, 2936, 3368, 3670, 4210, 4404, 5052, 5505, 6315, 7340, 8420, 8808, 10104, 11010, 12630, 14680, 16840, 22020, 25260, 44040, 50520, 154507, 309014, 463521, 618028, 772535, 927042, 1236056, 1545070, 1854084, 2317605, 3090140, 3708168, 4635210, 6180280, 9270420, 18540840]

約数ペア:

[(1, 18540840), (2, 9270420), (3, 6180280), (4, 4635210), (5, 3708168), (6, 3090140), (8, 2317605), (10, 1854084), (12, 1545070), (15, 1236056), (20, 927042), (24, 772535), (30, 618028), (40, 463521), (60, 309014), (120, 154507), (367, 50520), (421, 44040), (734, 25260), (842, 22020), (1101, 16840), (1263, 14680), (1468, 12630), (1684, 11010), (1835, 10104), (2105, 8808), (2202, 8420), (2526, 7340), (2936, 6315), (3368, 5505), (3670, 5052), (4210, 4404)]