18669080

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{829}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 42130800

約数和(自身を除く): 23461720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 829, 1126, 1658, 2252, 2815, 3316, 4145, 4504, 5630, 6632, 8290, 11260, 16580, 22520, 33160, 466727, 933454, 1866908, 2333635, 3733816, 4667270, 9334540, 18669080]

約数ペア:

[(1, 18669080), (2, 9334540), (4, 4667270), (5, 3733816), (8, 2333635), (10, 1866908), (20, 933454), (40, 466727), (563, 33160), (829, 22520), (1126, 16580), (1658, 11260), (2252, 8290), (2815, 6632), (3316, 5630), (4145, 4504)]