21920880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{613}}^1$

素因数の和:778

約数の個数: 80

約数和(自身を含む): 68522400

約数和(自身を除く): 46601520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 149, 240, 298, 447, 596, 613, 745, 894, 1192, 1226, 1490, 1788, 1839, 2235, 2384, 2452, 2980, 3065, 3576, 3678, 4470, 4904, 5960, 6130, 7152, 7356, 8940, 9195, 9808, 11920, 12260, 14712, 17880, 18390, 24520, 29424, 35760, 36780, 49040, 73560, 91337, 147120, 182674, 274011, 365348, 456685, 548022, 730696, 913370, 1096044, 1370055, 1461392, 1826740, 2192088, 2740110, 3653480, 4384176, 5480220, 7306960, 10960440, 21920880]

約数ペア:

[(1, 21920880), (2, 10960440), (3, 7306960), (4, 5480220), (5, 4384176), (6, 3653480), (8, 2740110), (10, 2192088), (12, 1826740), (15, 1461392), (16, 1370055), (20, 1096044), (24, 913370), (30, 730696), (40, 548022), (48, 456685), (60, 365348), (80, 274011), (120, 182674), (149, 147120), (240, 91337), (298, 73560), (447, 49040), (596, 36780), (613, 35760), (745, 29424), (894, 24520), (1192, 18390), (1226, 17880), (1490, 14712), (1788, 12260), (1839, 11920), (2235, 9808), (2384, 9195), (2452, 8940), (2980, 7356), (3065, 7152), (3576, 6130), (3678, 5960), (4470, 4904)]