19947960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55411}}^1$

素因数の和:55428

約数の個数: 48

約数和(自身を含む): 64832040

約数和(自身を除く): 44884080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55411, 110822, 166233, 221644, 277055, 332466, 443288, 498699, 554110, 664932, 831165, 997398, 1108220, 1329864, 1662330, 1994796, 2216440, 2493495, 3324660, 3989592, 4986990, 6649320, 9973980, 19947960]

約数ペア:

[(1, 19947960), (2, 9973980), (3, 6649320), (4, 4986990), (5, 3989592), (6, 3324660), (8, 2493495), (9, 2216440), (10, 1994796), (12, 1662330), (15, 1329864), (18, 1108220), (20, 997398), (24, 831165), (30, 664932), (36, 554110), (40, 498699), (45, 443288), (60, 332466), (72, 277055), (90, 221644), (120, 166233), (180, 110822), (360, 55411)]