1398127720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{53857}}^1$

素因数の和:53938

約数の個数: 64

約数和(自身を含む): 3489998400

約数和(自身を除く): 2091870680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 1180, 1298, 2360, 2596, 3245, 5192, 6490, 12980, 25960, 53857, 107714, 215428, 269285, 430856, 538570, 592427, 1077140, 1184854, 2154280, 2369708, 2962135, 3177563, 4739416, 5924270, 6355126, 11848540, 12710252, 15887815, 23697080, 25420504, 31775630, 34953193, 63551260, 69906386, 127102520, 139812772, 174765965, 279625544, 349531930, 699063860, 1398127720]

約数ペア:

[(1, 1398127720), (2, 699063860), (4, 349531930), (5, 279625544), (8, 174765965), (10, 139812772), (11, 127102520), (20, 69906386), (22, 63551260), (40, 34953193), (44, 31775630), (55, 25420504), (59, 23697080), (88, 15887815), (110, 12710252), (118, 11848540), (220, 6355126), (236, 5924270), (295, 4739416), (440, 3177563), (472, 2962135), (590, 2369708), (649, 2154280), (1180, 1184854), (1298, 1077140), (2360, 592427), (2596, 538570), (3245, 430856), (5192, 269285), (6490, 215428), (12980, 107714), (25960, 53857)]