20571012

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 66777984

約数和(自身を除く): 46206972

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 41, 42, 44, 63, 66, 77, 82, 84, 99, 123, 126, 132, 154, 164, 181, 198, 231, 246, 252, 287, 308, 362, 369, 396, 451, 462, 492, 543, 574, 693, 724, 738, 861, 902, 924, 1086, 1148, 1267, 1353, 1386, 1476, 1629, 1722, 1804, 1991, 2172, 2534, 2583, 2706, 2772, 3157, 3258, 3444, 3801, 3982, 4059, 5068, 5166, 5412, 5973, 6314, 6516, 7421, 7602, 7964, 8118, 9471, 10332, 11403, 11946, 12628, 13937, 14842, 15204, 16236, 17919, 18942, 22263, 22806, 23892, 27874, 28413, 29684, 35838, 37884, 41811, 44526, 45612, 51947, 55748, 56826, 66789, 71676, 81631, 83622, 89052, 103894, 113652, 125433, 133578, 155841, 163262, 167244, 207788, 244893, 250866, 267156, 311682, 326524, 467523, 489786, 501732, 571417, 623364, 734679, 935046, 979572, 1142834, 1469358, 1714251, 1870092, 2285668, 2938716, 3428502, 5142753, 6857004, 10285506, 20571012]

約数ペア:

[(1, 20571012), (2, 10285506), (3, 6857004), (4, 5142753), (6, 3428502), (7, 2938716), (9, 2285668), (11, 1870092), (12, 1714251), (14, 1469358), (18, 1142834), (21, 979572), (22, 935046), (28, 734679), (33, 623364), (36, 571417), (41, 501732), (42, 489786), (44, 467523), (63, 326524), (66, 311682), (77, 267156), (82, 250866), (84, 244893), (99, 207788), (123, 167244), (126, 163262), (132, 155841), (154, 133578), (164, 125433), (181, 113652), (198, 103894), (231, 89052), (246, 83622), (252, 81631), (287, 71676), (308, 66789), (362, 56826), (369, 55748), (396, 51947), (451, 45612), (462, 44526), (492, 41811), (543, 37884), (574, 35838), (693, 29684), (724, 28413), (738, 27874), (861, 23892), (902, 22806), (924, 22263), (1086, 18942), (1148, 17919), (1267, 16236), (1353, 15204), (1386, 14842), (1476, 13937), (1629, 12628), (1722, 11946), (1804, 11403), (1991, 10332), (2172, 9471), (2534, 8118), (2583, 7964), (2706, 7602), (2772, 7421), (3157, 6516), (3258, 6314), (3444, 5973), (3801, 5412), (3982, 5166), (4059, 5068)]