1782080120

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{6469}}^1$

素因数の和:6648

約数の個数: 64

約数和(自身を含む): 4108708800

約数和(自身を除く): 2326628680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 97, 142, 194, 284, 355, 388, 485, 568, 710, 776, 970, 1420, 1940, 2840, 3880, 6469, 6887, 12938, 13774, 25876, 27548, 32345, 34435, 51752, 55096, 64690, 68870, 129380, 137740, 258760, 275480, 459299, 627493, 918598, 1254986, 1837196, 2296495, 2509972, 3137465, 3674392, 4592990, 5019944, 6274930, 9185980, 12549860, 18371960, 25099720, 44552003, 89104006, 178208012, 222760015, 356416024, 445520030, 891040060, 1782080120]

約数ペア:

[(1, 1782080120), (2, 891040060), (4, 445520030), (5, 356416024), (8, 222760015), (10, 178208012), (20, 89104006), (40, 44552003), (71, 25099720), (97, 18371960), (142, 12549860), (194, 9185980), (284, 6274930), (355, 5019944), (388, 4592990), (485, 3674392), (568, 3137465), (710, 2509972), (776, 2296495), (970, 1837196), (1420, 1254986), (1940, 918598), (2840, 627493), (3880, 459299), (6469, 275480), (6887, 258760), (12938, 137740), (13774, 129380), (25876, 68870), (27548, 64690), (32345, 55096), (34435, 51752)]