201319720720

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{509}}^1\times {\mathrm{11471}}^1$

素因数の和:12424

約数の個数: 80

約数和(自身を含む): 470117053440

約数和(自身を除く): 268797332720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 509, 862, 1018, 1724, 2036, 2155, 2545, 3448, 4072, 4310, 5090, 6896, 8144, 8620, 10180, 11471, 17240, 20360, 22942, 34480, 40720, 45884, 57355, 91768, 114710, 183536, 219379, 229420, 438758, 458840, 877516, 917680, 1096895, 1755032, 2193790, 3510064, 4387580, 4944001, 5838739, 8775160, 9888002, 11677478, 17550320, 19776004, 23354956, 24720005, 29193695, 39552008, 46709912, 49440010, 58387390, 79104016, 93419824, 98880020, 116774780, 197760040, 233549560, 395520080, 467099120, 2516496509, 5032993018, 10065986036, 12582482545, 20131972072, 25164965090, 40263944144, 50329930180, 100659860360, 201319720720]

約数ペア:

[(1, 201319720720), (2, 100659860360), (4, 50329930180), (5, 40263944144), (8, 25164965090), (10, 20131972072), (16, 12582482545), (20, 10065986036), (40, 5032993018), (80, 2516496509), (431, 467099120), (509, 395520080), (862, 233549560), (1018, 197760040), (1724, 116774780), (2036, 98880020), (2155, 93419824), (2545, 79104016), (3448, 58387390), (4072, 49440010), (4310, 46709912), (5090, 39552008), (6896, 29193695), (8144, 24720005), (8620, 23354956), (10180, 19776004), (11471, 17550320), (17240, 11677478), (20360, 9888002), (22942, 8775160), (34480, 5838739), (40720, 4944001), (45884, 4387580), (57355, 3510064), (91768, 2193790), (114710, 1755032), (183536, 1096895), (219379, 917680), (229420, 877516), (438758, 458840)]