20804730044

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{188729}}^1$

素因数の和:188898

約数の個数: 48

約数和(自身を含む): 43290132480

約数和(自身を除く): 22485402436

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 127, 217, 254, 434, 508, 868, 889, 1778, 3556, 3937, 7874, 15748, 27559, 55118, 110236, 188729, 377458, 754916, 1321103, 2642206, 5284412, 5850599, 11701198, 23402396, 23968583, 40954193, 47937166, 81908386, 95874332, 163816772, 167780081, 335560162, 671120324, 743026073, 1486052146, 2972104292, 5201182511, 10402365022, 20804730044]

約数ペア:

[(1, 20804730044), (2, 10402365022), (4, 5201182511), (7, 2972104292), (14, 1486052146), (28, 743026073), (31, 671120324), (62, 335560162), (124, 167780081), (127, 163816772), (217, 95874332), (254, 81908386), (434, 47937166), (508, 40954193), (868, 23968583), (889, 23402396), (1778, 11701198), (3556, 5850599), (3937, 5284412), (7874, 2642206), (15748, 1321103), (27559, 754916), (55118, 377458), (110236, 188729)]