20279688

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:363

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 42619512

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 19, 22, 24, 26, 33, 38, 39, 44, 52, 57, 66, 76, 78, 88, 104, 114, 132, 143, 152, 156, 209, 228, 247, 264, 286, 311, 312, 418, 429, 456, 494, 572, 622, 627, 741, 836, 858, 933, 988, 1144, 1244, 1254, 1482, 1672, 1716, 1866, 1976, 2488, 2508, 2717, 2964, 3421, 3432, 3732, 4043, 5016, 5434, 5909, 5928, 6842, 7464, 8086, 8151, 10263, 10868, 11818, 12129, 13684, 16172, 16302, 17727, 20526, 21736, 23636, 24258, 27368, 32344, 32604, 35454, 41052, 44473, 47272, 48516, 64999, 65208, 70908, 76817, 82104, 88946, 97032, 129998, 133419, 141816, 153634, 177892, 194997, 230451, 259996, 266838, 307268, 355784, 389994, 460902, 519992, 533676, 614536, 779988, 844987, 921804, 1067352, 1559976, 1689974, 1843608, 2534961, 3379948, 5069922, 6759896, 10139844, 20279688]

約数ペア:

[(1, 20279688), (2, 10139844), (3, 6759896), (4, 5069922), (6, 3379948), (8, 2534961), (11, 1843608), (12, 1689974), (13, 1559976), (19, 1067352), (22, 921804), (24, 844987), (26, 779988), (33, 614536), (38, 533676), (39, 519992), (44, 460902), (52, 389994), (57, 355784), (66, 307268), (76, 266838), (78, 259996), (88, 230451), (104, 194997), (114, 177892), (132, 153634), (143, 141816), (152, 133419), (156, 129998), (209, 97032), (228, 88946), (247, 82104), (264, 76817), (286, 70908), (311, 65208), (312, 64999), (418, 48516), (429, 47272), (456, 44473), (494, 41052), (572, 35454), (622, 32604), (627, 32344), (741, 27368), (836, 24258), (858, 23636), (933, 21736), (988, 20526), (1144, 17727), (1244, 16302), (1254, 16172), (1482, 13684), (1672, 12129), (1716, 11818), (1866, 10868), (1976, 10263), (2488, 8151), (2508, 8086), (2717, 7464), (2964, 6842), (3421, 5928), (3432, 5909), (3732, 5434), (4043, 5016)]