20527920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4073}}^1$

素因数の和:4099

約数の個数: 120

約数和(自身を含む): 78807456

約数和(自身を除く): 58279536

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, 4073, 5040, 8146, 12219, 16292, 20365, 24438, 28511, 32584, 36657, 40730, 48876, 57022, 61095, 65168, 73314, 81460, 85533, 97752, 114044, 122190, 142555, 146628, 162920, 171066, 183285, 195504, 228088, 244380, 256599, 285110, 293256, 325840, 342132, 366570, 427665, 456176, 488760, 513198, 570220, 586512, 684264, 733140, 855330, 977520, 1026396, 1140440, 1282995, 1368528, 1466280, 1710660, 2052792, 2280880, 2565990, 2932560, 3421320, 4105584, 5131980, 6842640, 10263960, 20527920]

約数ペア:

[(1, 20527920), (2, 10263960), (3, 6842640), (4, 5131980), (5, 4105584), (6, 3421320), (7, 2932560), (8, 2565990), (9, 2280880), (10, 2052792), (12, 1710660), (14, 1466280), (15, 1368528), (16, 1282995), (18, 1140440), (20, 1026396), (21, 977520), (24, 855330), (28, 733140), (30, 684264), (35, 586512), (36, 570220), (40, 513198), (42, 488760), (45, 456176), (48, 427665), (56, 366570), (60, 342132), (63, 325840), (70, 293256), (72, 285110), (80, 256599), (84, 244380), (90, 228088), (105, 195504), (112, 183285), (120, 171066), (126, 162920), (140, 146628), (144, 142555), (168, 122190), (180, 114044), (210, 97752), (240, 85533), (252, 81460), (280, 73314), (315, 65168), (336, 61095), (360, 57022), (420, 48876), (504, 40730), (560, 36657), (630, 32584), (720, 28511), (840, 24438), (1008, 20365), (1260, 16292), (1680, 12219), (2520, 8146), (4073, 5040)]