21955080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{443}}^1$

素因数の和:523

約数の個数: 128

約数和(自身を含む): 76723200

約数和(自身を除く): 54768120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 59, 60, 70, 84, 105, 118, 120, 140, 168, 177, 210, 236, 280, 295, 354, 413, 420, 443, 472, 590, 708, 826, 840, 885, 886, 1180, 1239, 1329, 1416, 1652, 1770, 1772, 2065, 2215, 2360, 2478, 2658, 3101, 3304, 3540, 3544, 4130, 4430, 4956, 5316, 6195, 6202, 6645, 7080, 8260, 8860, 9303, 9912, 10632, 12390, 12404, 13290, 15505, 16520, 17720, 18606, 24780, 24808, 26137, 26580, 31010, 37212, 46515, 49560, 52274, 53160, 62020, 74424, 78411, 93030, 104548, 124040, 130685, 156822, 182959, 186060, 209096, 261370, 313644, 365918, 372120, 392055, 522740, 548877, 627288, 731836, 784110, 914795, 1045480, 1097754, 1463672, 1568220, 1829590, 2195508, 2744385, 3136440, 3659180, 4391016, 5488770, 7318360, 10977540, 21955080]

約数ペア:

[(1, 21955080), (2, 10977540), (3, 7318360), (4, 5488770), (5, 4391016), (6, 3659180), (7, 3136440), (8, 2744385), (10, 2195508), (12, 1829590), (14, 1568220), (15, 1463672), (20, 1097754), (21, 1045480), (24, 914795), (28, 784110), (30, 731836), (35, 627288), (40, 548877), (42, 522740), (56, 392055), (59, 372120), (60, 365918), (70, 313644), (84, 261370), (105, 209096), (118, 186060), (120, 182959), (140, 156822), (168, 130685), (177, 124040), (210, 104548), (236, 93030), (280, 78411), (295, 74424), (354, 62020), (413, 53160), (420, 52274), (443, 49560), (472, 46515), (590, 37212), (708, 31010), (826, 26580), (840, 26137), (885, 24808), (886, 24780), (1180, 18606), (1239, 17720), (1329, 16520), (1416, 15505), (1652, 13290), (1770, 12404), (1772, 12390), (2065, 10632), (2215, 9912), (2360, 9303), (2478, 8860), (2658, 8260), (3101, 7080), (3304, 6645), (3540, 6202), (3544, 6195), (4130, 5316), (4430, 4956)]