18694720

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:188

約数の個数: 112

約数和(自身を含む): 50035968

約数和(自身を除く): 31341248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 64, 80, 88, 94, 110, 113, 160, 176, 188, 220, 226, 235, 320, 352, 376, 440, 452, 470, 517, 565, 704, 752, 880, 904, 940, 1034, 1130, 1243, 1504, 1760, 1808, 1880, 2068, 2260, 2486, 2585, 3008, 3520, 3616, 3760, 4136, 4520, 4972, 5170, 5311, 6215, 7232, 7520, 8272, 9040, 9944, 10340, 10622, 12430, 15040, 16544, 18080, 19888, 20680, 21244, 24860, 26555, 33088, 36160, 39776, 41360, 42488, 49720, 53110, 58421, 79552, 82720, 84976, 99440, 106220, 116842, 165440, 169952, 198880, 212440, 233684, 292105, 339904, 397760, 424880, 467368, 584210, 849760, 934736, 1168420, 1699520, 1869472, 2336840, 3738944, 4673680, 9347360, 18694720]

約数ペア:

[(1, 18694720), (2, 9347360), (4, 4673680), (5, 3738944), (8, 2336840), (10, 1869472), (11, 1699520), (16, 1168420), (20, 934736), (22, 849760), (32, 584210), (40, 467368), (44, 424880), (47, 397760), (55, 339904), (64, 292105), (80, 233684), (88, 212440), (94, 198880), (110, 169952), (113, 165440), (160, 116842), (176, 106220), (188, 99440), (220, 84976), (226, 82720), (235, 79552), (320, 58421), (352, 53110), (376, 49720), (440, 42488), (452, 41360), (470, 39776), (517, 36160), (565, 33088), (704, 26555), (752, 24860), (880, 21244), (904, 20680), (940, 19888), (1034, 18080), (1130, 16544), (1243, 15040), (1504, 12430), (1760, 10622), (1808, 10340), (1880, 9944), (2068, 9040), (2260, 8272), (2486, 7520), (2585, 7232), (3008, 6215), (3520, 5311), (3616, 5170), (3760, 4972), (4136, 4520)]