21516258480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{479}}^1\times {\mathrm{187163}}^1$

素因数の和:187658

約数の個数: 80

約数和(自身を含む): 66840007680

約数和(自身を除く): 45323749200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 479, 958, 1437, 1916, 2395, 2874, 3832, 4790, 5748, 7185, 7664, 9580, 11496, 14370, 19160, 22992, 28740, 38320, 57480, 114960, 187163, 374326, 561489, 748652, 935815, 1122978, 1497304, 1871630, 2245956, 2807445, 2994608, 3743260, 4491912, 5614890, 7486520, 8983824, 11229780, 14973040, 22459560, 44919120, 89651077, 179302154, 268953231, 358604308, 448255385, 537906462, 717208616, 896510770, 1075812924, 1344766155, 1434417232, 1793021540, 2151625848, 2689532310, 3586043080, 4303251696, 5379064620, 7172086160, 10758129240, 21516258480]

約数ペア:

[(1, 21516258480), (2, 10758129240), (3, 7172086160), (4, 5379064620), (5, 4303251696), (6, 3586043080), (8, 2689532310), (10, 2151625848), (12, 1793021540), (15, 1434417232), (16, 1344766155), (20, 1075812924), (24, 896510770), (30, 717208616), (40, 537906462), (48, 448255385), (60, 358604308), (80, 268953231), (120, 179302154), (240, 89651077), (479, 44919120), (958, 22459560), (1437, 14973040), (1916, 11229780), (2395, 8983824), (2874, 7486520), (3832, 5614890), (4790, 4491912), (5748, 3743260), (7185, 2994608), (7664, 2807445), (9580, 2245956), (11496, 1871630), (14370, 1497304), (19160, 1122978), (22992, 935815), (28740, 748652), (38320, 561489), (57480, 374326), (114960, 187163)]