1900381578

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:907

約数の個数: 64

約数和(自身を含む): 4031078400

約数和(自身を除く): 2130696822

約数列:

[1, 2, 3, 6, 23, 46, 69, 89, 138, 178, 267, 359, 431, 534, 718, 862, 1077, 1293, 2047, 2154, 2586, 4094, 6141, 8257, 9913, 12282, 16514, 19826, 24771, 29739, 31951, 38359, 49542, 59478, 63902, 76718, 95853, 115077, 154729, 191706, 230154, 309458, 464187, 734873, 882257, 928374, 1469746, 1764514, 2204619, 2646771, 3558767, 4409238, 5293542, 7117534, 10676301, 13770881, 21352602, 27541762, 41312643, 82625286, 316730263, 633460526, 950190789, 1900381578]

約数ペア:

[(1, 1900381578), (2, 950190789), (3, 633460526), (6, 316730263), (23, 82625286), (46, 41312643), (69, 27541762), (89, 21352602), (138, 13770881), (178, 10676301), (267, 7117534), (359, 5293542), (431, 4409238), (534, 3558767), (718, 2646771), (862, 2204619), (1077, 1764514), (1293, 1469746), (2047, 928374), (2154, 882257), (2586, 734873), (4094, 464187), (6141, 309458), (8257, 230154), (9913, 191706), (12282, 154729), (16514, 115077), (19826, 95853), (24771, 76718), (29739, 63902), (31951, 59478), (38359, 49542)]