20280491280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4023907}}^1$

素因数の和:4023933

約数の個数: 120

約数和(自身を含む): 77838476352

約数和(自身を除く): 57557985072

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 4023907, 8047814, 12071721, 16095628, 20119535, 24143442, 28167349, 32191256, 36215163, 40239070, 48286884, 56334698, 60358605, 64382512, 72430326, 80478140, 84502047, 96573768, 112669396, 120717210, 140836745, 144860652, 160956280, 169004094, 181075815, 193147536, 225338792, 241434420, 253506141, 281673490, 289721304, 321912560, 338008188, 362151630, 422510235, 450677584, 482868840, 507012282, 563346980, 579442608, 676016376, 724303260, 845020470, 965737680, 1014024564, 1126693960, 1267530705, 1352032752, 1448606520, 1690040940, 2028049128, 2253387920, 2535061410, 2897213040, 3380081880, 4056098256, 5070122820, 6760163760, 10140245640, 20280491280]

約数ペア:

[(1, 20280491280), (2, 10140245640), (3, 6760163760), (4, 5070122820), (5, 4056098256), (6, 3380081880), (7, 2897213040), (8, 2535061410), (9, 2253387920), (10, 2028049128), (12, 1690040940), (14, 1448606520), (15, 1352032752), (16, 1267530705), (18, 1126693960), (20, 1014024564), (21, 965737680), (24, 845020470), (28, 724303260), (30, 676016376), (35, 579442608), (36, 563346980), (40, 507012282), (42, 482868840), (45, 450677584), (48, 422510235), (56, 362151630), (60, 338008188), (63, 321912560), (70, 289721304), (72, 281673490), (80, 253506141), (84, 241434420), (90, 225338792), (105, 193147536), (112, 181075815), (120, 169004094), (126, 160956280), (140, 144860652), (144, 140836745), (168, 120717210), (180, 112669396), (210, 96573768), (240, 84502047), (252, 80478140), (280, 72430326), (315, 64382512), (336, 60358605), (360, 56334698), (420, 48286884), (504, 40239070), (560, 36215163), (630, 32191256), (720, 28167349), (840, 24143442), (1008, 20119535), (1260, 16095628), (1680, 12071721), (2520, 8047814), (5040, 4023907)]