131721040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^2$

素因数の和:185

約数の個数: 120

約数和(自身を含む): 347754528

約数和(自身を除く): 216033488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 59, 80, 86, 88, 110, 118, 172, 176, 215, 220, 236, 295, 344, 430, 440, 472, 473, 590, 649, 688, 860, 880, 944, 946, 1180, 1298, 1720, 1892, 2360, 2365, 2537, 2596, 3245, 3440, 3481, 3784, 4720, 4730, 5074, 5192, 6490, 6962, 7568, 9460, 10148, 10384, 12685, 12980, 13924, 17405, 18920, 20296, 25370, 25960, 27848, 27907, 34810, 37840, 38291, 40592, 50740, 51920, 55696, 55814, 69620, 76582, 101480, 111628, 139240, 139535, 149683, 153164, 191455, 202960, 223256, 278480, 279070, 299366, 306328, 382910, 446512, 558140, 598732, 612656, 748415, 765820, 1116280, 1197464, 1496830, 1531640, 1646513, 2232560, 2394928, 2993660, 3063280, 3293026, 5987320, 6586052, 8232565, 11974640, 13172104, 16465130, 26344208, 32930260, 65860520, 131721040]

約数ペア:

[(1, 131721040), (2, 65860520), (4, 32930260), (5, 26344208), (8, 16465130), (10, 13172104), (11, 11974640), (16, 8232565), (20, 6586052), (22, 5987320), (40, 3293026), (43, 3063280), (44, 2993660), (55, 2394928), (59, 2232560), (80, 1646513), (86, 1531640), (88, 1496830), (110, 1197464), (118, 1116280), (172, 765820), (176, 748415), (215, 612656), (220, 598732), (236, 558140), (295, 446512), (344, 382910), (430, 306328), (440, 299366), (472, 279070), (473, 278480), (590, 223256), (649, 202960), (688, 191455), (860, 153164), (880, 149683), (944, 139535), (946, 139240), (1180, 111628), (1298, 101480), (1720, 76582), (1892, 69620), (2360, 55814), (2365, 55696), (2537, 51920), (2596, 50740), (3245, 40592), (3440, 38291), (3481, 37840), (3784, 34810), (4720, 27907), (4730, 27848), (5074, 25960), (5192, 25370), (6490, 20296), (6962, 18920), (7568, 17405), (9460, 13924), (10148, 12980), (10384, 12685)]