20466960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{797}}^1$

素因数の和:920

約数の個数: 80

約数和(自身を含む): 64120896

約数和(自身を除く): 43653936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 107, 120, 214, 240, 321, 428, 535, 642, 797, 856, 1070, 1284, 1594, 1605, 1712, 2140, 2391, 2568, 3188, 3210, 3985, 4280, 4782, 5136, 6376, 6420, 7970, 8560, 9564, 11955, 12752, 12840, 15940, 19128, 23910, 25680, 31880, 38256, 47820, 63760, 85279, 95640, 170558, 191280, 255837, 341116, 426395, 511674, 682232, 852790, 1023348, 1279185, 1364464, 1705580, 2046696, 2558370, 3411160, 4093392, 5116740, 6822320, 10233480, 20466960]

約数ペア:

[(1, 20466960), (2, 10233480), (3, 6822320), (4, 5116740), (5, 4093392), (6, 3411160), (8, 2558370), (10, 2046696), (12, 1705580), (15, 1364464), (16, 1279185), (20, 1023348), (24, 852790), (30, 682232), (40, 511674), (48, 426395), (60, 341116), (80, 255837), (107, 191280), (120, 170558), (214, 95640), (240, 85279), (321, 63760), (428, 47820), (535, 38256), (642, 31880), (797, 25680), (856, 23910), (1070, 19128), (1284, 15940), (1594, 12840), (1605, 12752), (1712, 11955), (2140, 9564), (2391, 8560), (2568, 7970), (3188, 6420), (3210, 6376), (3985, 5136), (4280, 4782)]