20517288

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:183

約数の個数: 128

約数和(自身を含む): 60825600

約数和(自身を除く): 40308312

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 23, 24, 31, 33, 44, 46, 62, 66, 69, 88, 92, 93, 109, 124, 132, 138, 184, 186, 218, 248, 253, 264, 276, 327, 341, 372, 436, 506, 552, 654, 682, 713, 744, 759, 872, 1012, 1023, 1199, 1308, 1364, 1426, 1518, 2024, 2046, 2139, 2398, 2507, 2616, 2728, 2852, 3036, 3379, 3597, 4092, 4278, 4796, 5014, 5704, 6072, 6758, 7194, 7521, 7843, 8184, 8556, 9592, 10028, 10137, 13516, 14388, 15042, 15686, 17112, 20056, 20274, 23529, 27032, 27577, 28776, 30084, 31372, 37169, 40548, 47058, 55154, 60168, 62744, 74338, 77717, 81096, 82731, 94116, 110308, 111507, 148676, 155434, 165462, 188232, 220616, 223014, 233151, 297352, 310868, 330924, 446028, 466302, 621736, 661848, 854887, 892056, 932604, 1709774, 1865208, 2564661, 3419548, 5129322, 6839096, 10258644, 20517288]

約数ペア:

[(1, 20517288), (2, 10258644), (3, 6839096), (4, 5129322), (6, 3419548), (8, 2564661), (11, 1865208), (12, 1709774), (22, 932604), (23, 892056), (24, 854887), (31, 661848), (33, 621736), (44, 466302), (46, 446028), (62, 330924), (66, 310868), (69, 297352), (88, 233151), (92, 223014), (93, 220616), (109, 188232), (124, 165462), (132, 155434), (138, 148676), (184, 111507), (186, 110308), (218, 94116), (248, 82731), (253, 81096), (264, 77717), (276, 74338), (327, 62744), (341, 60168), (372, 55154), (436, 47058), (506, 40548), (552, 37169), (654, 31372), (682, 30084), (713, 28776), (744, 27577), (759, 27032), (872, 23529), (1012, 20274), (1023, 20056), (1199, 17112), (1308, 15686), (1364, 15042), (1426, 14388), (1518, 13516), (2024, 10137), (2046, 10028), (2139, 9592), (2398, 8556), (2507, 8184), (2616, 7843), (2728, 7521), (2852, 7194), (3036, 6758), (3379, 6072), (3597, 5704), (4092, 5014), (4278, 4796)]