20188080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2549}}^1$

素因数の和:2579

約数の個数: 120

約数和(自身を含む): 73990800

約数和(自身を除く): 53802720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2549, 2640, 3960, 5098, 7647, 7920, 10196, 12745, 15294, 20392, 22941, 25490, 28039, 30588, 38235, 40784, 45882, 50980, 56078, 61176, 76470, 84117, 91764, 101960, 112156, 114705, 122352, 140195, 152940, 168234, 183528, 203920, 224312, 229410, 252351, 280390, 305880, 336468, 367056, 420585, 448624, 458820, 504702, 560780, 611760, 672936, 841170, 917640, 1009404, 1121560, 1261755, 1345872, 1682340, 1835280, 2018808, 2243120, 2523510, 3364680, 4037616, 5047020, 6729360, 10094040, 20188080]

約数ペア:

[(1, 20188080), (2, 10094040), (3, 6729360), (4, 5047020), (5, 4037616), (6, 3364680), (8, 2523510), (9, 2243120), (10, 2018808), (11, 1835280), (12, 1682340), (15, 1345872), (16, 1261755), (18, 1121560), (20, 1009404), (22, 917640), (24, 841170), (30, 672936), (33, 611760), (36, 560780), (40, 504702), (44, 458820), (45, 448624), (48, 420585), (55, 367056), (60, 336468), (66, 305880), (72, 280390), (80, 252351), (88, 229410), (90, 224312), (99, 203920), (110, 183528), (120, 168234), (132, 152940), (144, 140195), (165, 122352), (176, 114705), (180, 112156), (198, 101960), (220, 91764), (240, 84117), (264, 76470), (330, 61176), (360, 56078), (396, 50980), (440, 45882), (495, 40784), (528, 38235), (660, 30588), (720, 28039), (792, 25490), (880, 22941), (990, 20392), (1320, 15294), (1584, 12745), (1980, 10196), (2549, 7920), (2640, 7647), (3960, 5098)]