19814656

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 43598520

約数和(自身を除く): 23783864

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 58, 64, 68, 116, 128, 136, 157, 232, 256, 272, 314, 464, 493, 544, 628, 928, 986, 1088, 1256, 1856, 1972, 2176, 2512, 2669, 3712, 3944, 4352, 4553, 5024, 5338, 7424, 7888, 9106, 10048, 10676, 15776, 18212, 20096, 21352, 31552, 36424, 40192, 42704, 63104, 72848, 77401, 85408, 126208, 145696, 154802, 170816, 291392, 309604, 341632, 582784, 619208, 683264, 1165568, 1238416, 2476832, 4953664, 9907328, 19814656]

約数ペア:

[(1, 19814656), (2, 9907328), (4, 4953664), (8, 2476832), (16, 1238416), (17, 1165568), (29, 683264), (32, 619208), (34, 582784), (58, 341632), (64, 309604), (68, 291392), (116, 170816), (128, 154802), (136, 145696), (157, 126208), (232, 85408), (256, 77401), (272, 72848), (314, 63104), (464, 42704), (493, 40192), (544, 36424), (628, 31552), (928, 21352), (986, 20096), (1088, 18212), (1256, 15776), (1856, 10676), (1972, 10048), (2176, 9106), (2512, 7888), (2669, 7424), (3712, 5338), (3944, 5024), (4352, 4553)]