28006055

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 16809625

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 121, 187, 385, 389, 595, 605, 847, 935, 1309, 1945, 2057, 2723, 4235, 4279, 6545, 6613, 10285, 13615, 14399, 21395, 29953, 33065, 46291, 47069, 71995, 72743, 149765, 231455, 235345, 329483, 363715, 509201, 800173, 1647415, 2546005, 4000865, 5601211, 28006055]

約数ペア:

[(1, 28006055), (5, 5601211), (7, 4000865), (11, 2546005), (17, 1647415), (35, 800173), (55, 509201), (77, 363715), (85, 329483), (119, 235345), (121, 231455), (187, 149765), (385, 72743), (389, 71995), (595, 47069), (605, 46291), (847, 33065), (935, 29953), (1309, 21395), (1945, 14399), (2057, 13615), (2723, 10285), (4235, 6613), (4279, 6545)]