20018240

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^3\times {\mathrm{47}}^1$

素因数の和:97

約数の個数: 112

約数和(自身を含む): 53547264

約数和(自身を除く): 33529024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 64, 80, 88, 94, 110, 121, 160, 176, 188, 220, 235, 242, 320, 352, 376, 440, 470, 484, 517, 605, 704, 752, 880, 940, 968, 1034, 1210, 1331, 1504, 1760, 1880, 1936, 2068, 2420, 2585, 2662, 3008, 3520, 3760, 3872, 4136, 4840, 5170, 5324, 5687, 6655, 7520, 7744, 8272, 9680, 10340, 10648, 11374, 13310, 15040, 16544, 19360, 20680, 21296, 22748, 26620, 28435, 33088, 38720, 41360, 42592, 45496, 53240, 56870, 62557, 82720, 85184, 90992, 106480, 113740, 125114, 165440, 181984, 212960, 227480, 250228, 312785, 363968, 425920, 454960, 500456, 625570, 909920, 1000912, 1251140, 1819840, 2001824, 2502280, 4003648, 5004560, 10009120, 20018240]

約数ペア:

[(1, 20018240), (2, 10009120), (4, 5004560), (5, 4003648), (8, 2502280), (10, 2001824), (11, 1819840), (16, 1251140), (20, 1000912), (22, 909920), (32, 625570), (40, 500456), (44, 454960), (47, 425920), (55, 363968), (64, 312785), (80, 250228), (88, 227480), (94, 212960), (110, 181984), (121, 165440), (160, 125114), (176, 113740), (188, 106480), (220, 90992), (235, 85184), (242, 82720), (320, 62557), (352, 56870), (376, 53240), (440, 45496), (470, 42592), (484, 41360), (517, 38720), (605, 33088), (704, 28435), (752, 26620), (880, 22748), (940, 21296), (968, 20680), (1034, 19360), (1210, 16544), (1331, 15040), (1504, 13310), (1760, 11374), (1880, 10648), (1936, 10340), (2068, 9680), (2420, 8272), (2585, 7744), (2662, 7520), (3008, 6655), (3520, 5687), (3760, 5324), (3872, 5170), (4136, 4840)]