20888400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{103}}^1$

素因数の和:150

約数の個数: 180

約数和(自身を含む): 73159008

約数和(自身を除く): 52270608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 100, 103, 104, 120, 130, 150, 156, 169, 195, 200, 206, 208, 240, 260, 300, 309, 312, 325, 338, 390, 400, 412, 507, 515, 520, 600, 618, 624, 650, 676, 780, 824, 845, 975, 1014, 1030, 1040, 1200, 1236, 1300, 1339, 1352, 1545, 1560, 1648, 1690, 1950, 2028, 2060, 2472, 2535, 2575, 2600, 2678, 2704, 3090, 3120, 3380, 3900, 4017, 4056, 4120, 4225, 4944, 5070, 5150, 5200, 5356, 6180, 6695, 6760, 7725, 7800, 8034, 8112, 8240, 8450, 10140, 10300, 10712, 12360, 12675, 13390, 13520, 15450, 15600, 16068, 16900, 17407, 20085, 20280, 20600, 21424, 24720, 25350, 26780, 30900, 32136, 33475, 33800, 34814, 40170, 40560, 41200, 50700, 52221, 53560, 61800, 64272, 66950, 67600, 69628, 80340, 87035, 100425, 101400, 104442, 107120, 123600, 133900, 139256, 160680, 174070, 200850, 202800, 208884, 261105, 267800, 278512, 321360, 348140, 401700, 417768, 435175, 522210, 535600, 696280, 803400, 835536, 870350, 1044420, 1305525, 1392560, 1606800, 1740700, 2088840, 2611050, 3481400, 4177680, 5222100, 6962800, 10444200, 20888400]

約数ペア:

[(1, 20888400), (2, 10444200), (3, 6962800), (4, 5222100), (5, 4177680), (6, 3481400), (8, 2611050), (10, 2088840), (12, 1740700), (13, 1606800), (15, 1392560), (16, 1305525), (20, 1044420), (24, 870350), (25, 835536), (26, 803400), (30, 696280), (39, 535600), (40, 522210), (48, 435175), (50, 417768), (52, 401700), (60, 348140), (65, 321360), (75, 278512), (78, 267800), (80, 261105), (100, 208884), (103, 202800), (104, 200850), (120, 174070), (130, 160680), (150, 139256), (156, 133900), (169, 123600), (195, 107120), (200, 104442), (206, 101400), (208, 100425), (240, 87035), (260, 80340), (300, 69628), (309, 67600), (312, 66950), (325, 64272), (338, 61800), (390, 53560), (400, 52221), (412, 50700), (507, 41200), (515, 40560), (520, 40170), (600, 34814), (618, 33800), (624, 33475), (650, 32136), (676, 30900), (780, 26780), (824, 25350), (845, 24720), (975, 21424), (1014, 20600), (1030, 20280), (1040, 20085), (1200, 17407), (1236, 16900), (1300, 16068), (1339, 15600), (1352, 15450), (1545, 13520), (1560, 13390), (1648, 12675), (1690, 12360), (1950, 10712), (2028, 10300), (2060, 10140), (2472, 8450), (2535, 8240), (2575, 8112), (2600, 8034), (2678, 7800), (2704, 7725), (3090, 6760), (3120, 6695), (3380, 6180), (3900, 5356), (4017, 5200), (4056, 5150), (4120, 5070), (4225, 4944)]