21645840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90191}}^1$

素因数の和:90207

約数の個数: 40

約数和(自身を含む): 67102848

約数和(自身を除く): 45457008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90191, 180382, 270573, 360764, 450955, 541146, 721528, 901910, 1082292, 1352865, 1443056, 1803820, 2164584, 2705730, 3607640, 4329168, 5411460, 7215280, 10822920, 21645840]

約数ペア:

[(1, 21645840), (2, 10822920), (3, 7215280), (4, 5411460), (5, 4329168), (6, 3607640), (8, 2705730), (10, 2164584), (12, 1803820), (15, 1443056), (16, 1352865), (20, 1082292), (24, 901910), (30, 721528), (40, 541146), (48, 450955), (60, 360764), (80, 270573), (120, 180382), (240, 90191)]