1998997616

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{22853}}^1$

素因数の和:22950

約数の個数: 80

約数和(自身を含む): 4896972288

約数和(自身を除く): 2897974672

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 71, 77, 88, 112, 142, 154, 176, 284, 308, 497, 568, 616, 781, 994, 1136, 1232, 1562, 1988, 3124, 3976, 5467, 6248, 7952, 10934, 12496, 21868, 22853, 43736, 45706, 87472, 91412, 159971, 182824, 251383, 319942, 365648, 502766, 639884, 1005532, 1279768, 1622563, 1759681, 2011064, 2559536, 3245126, 3519362, 4022128, 6490252, 7038724, 11357941, 12980504, 14077448, 17848193, 22715882, 25961008, 28154896, 35696386, 45431764, 71392772, 90863528, 124937351, 142785544, 181727056, 249874702, 285571088, 499749404, 999498808, 1998997616]

約数ペア:

[(1, 1998997616), (2, 999498808), (4, 499749404), (7, 285571088), (8, 249874702), (11, 181727056), (14, 142785544), (16, 124937351), (22, 90863528), (28, 71392772), (44, 45431764), (56, 35696386), (71, 28154896), (77, 25961008), (88, 22715882), (112, 17848193), (142, 14077448), (154, 12980504), (176, 11357941), (284, 7038724), (308, 6490252), (497, 4022128), (568, 3519362), (616, 3245126), (781, 2559536), (994, 2011064), (1136, 1759681), (1232, 1622563), (1562, 1279768), (1988, 1005532), (3124, 639884), (3976, 502766), (5467, 365648), (6248, 319942), (7952, 251383), (10934, 182824), (12496, 159971), (21868, 91412), (22853, 87472), (43736, 45706)]