20656080

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:226

約数の個数: 160

約数和(自身を含む): 72673920

約数和(自身を除く): 52017840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 73, 80, 90, 108, 120, 131, 135, 144, 146, 180, 216, 219, 240, 262, 270, 292, 360, 365, 393, 432, 438, 524, 540, 584, 655, 657, 720, 730, 786, 876, 1048, 1080, 1095, 1168, 1179, 1310, 1314, 1460, 1572, 1752, 1965, 1971, 2096, 2160, 2190, 2358, 2620, 2628, 2920, 3144, 3285, 3504, 3537, 3930, 3942, 4380, 4716, 5240, 5256, 5840, 5895, 6288, 6570, 7074, 7860, 7884, 8760, 9432, 9563, 9855, 10480, 10512, 11790, 13140, 14148, 15720, 15768, 17520, 17685, 18864, 19126, 19710, 23580, 26280, 28296, 28689, 31440, 31536, 35370, 38252, 39420, 47160, 47815, 52560, 56592, 57378, 70740, 76504, 78840, 86067, 94320, 95630, 114756, 141480, 143445, 153008, 157680, 172134, 191260, 229512, 258201, 282960, 286890, 344268, 382520, 430335, 459024, 516402, 573780, 688536, 765040, 860670, 1032804, 1147560, 1291005, 1377072, 1721340, 2065608, 2295120, 2582010, 3442680, 4131216, 5164020, 6885360, 10328040, 20656080]

約数ペア:

[(1, 20656080), (2, 10328040), (3, 6885360), (4, 5164020), (5, 4131216), (6, 3442680), (8, 2582010), (9, 2295120), (10, 2065608), (12, 1721340), (15, 1377072), (16, 1291005), (18, 1147560), (20, 1032804), (24, 860670), (27, 765040), (30, 688536), (36, 573780), (40, 516402), (45, 459024), (48, 430335), (54, 382520), (60, 344268), (72, 286890), (73, 282960), (80, 258201), (90, 229512), (108, 191260), (120, 172134), (131, 157680), (135, 153008), (144, 143445), (146, 141480), (180, 114756), (216, 95630), (219, 94320), (240, 86067), (262, 78840), (270, 76504), (292, 70740), (360, 57378), (365, 56592), (393, 52560), (432, 47815), (438, 47160), (524, 39420), (540, 38252), (584, 35370), (655, 31536), (657, 31440), (720, 28689), (730, 28296), (786, 26280), (876, 23580), (1048, 19710), (1080, 19126), (1095, 18864), (1168, 17685), (1179, 17520), (1310, 15768), (1314, 15720), (1460, 14148), (1572, 13140), (1752, 11790), (1965, 10512), (1971, 10480), (2096, 9855), (2160, 9563), (2190, 9432), (2358, 8760), (2620, 7884), (2628, 7860), (2920, 7074), (3144, 6570), (3285, 6288), (3504, 5895), (3537, 5840), (3930, 5256), (3942, 5240), (4380, 4716)]