285491440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1301}}^1$

素因数の和:1538

約数の個数: 80

約数和(自身を含む): 718766496

約数和(自身を除く): 433275056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 211, 260, 422, 520, 844, 1040, 1055, 1301, 1688, 2110, 2602, 2743, 3376, 4220, 5204, 5486, 6505, 8440, 10408, 10972, 13010, 13715, 16880, 16913, 20816, 21944, 26020, 27430, 33826, 43888, 52040, 54860, 67652, 84565, 104080, 109720, 135304, 169130, 219440, 270608, 274511, 338260, 549022, 676520, 1098044, 1353040, 1372555, 2196088, 2745110, 3568643, 4392176, 5490220, 7137286, 10980440, 14274572, 17843215, 21960880, 28549144, 35686430, 57098288, 71372860, 142745720, 285491440]

約数ペア:

[(1, 285491440), (2, 142745720), (4, 71372860), (5, 57098288), (8, 35686430), (10, 28549144), (13, 21960880), (16, 17843215), (20, 14274572), (26, 10980440), (40, 7137286), (52, 5490220), (65, 4392176), (80, 3568643), (104, 2745110), (130, 2196088), (208, 1372555), (211, 1353040), (260, 1098044), (422, 676520), (520, 549022), (844, 338260), (1040, 274511), (1055, 270608), (1301, 219440), (1688, 169130), (2110, 135304), (2602, 109720), (2743, 104080), (3376, 84565), (4220, 67652), (5204, 54860), (5486, 52040), (6505, 43888), (8440, 33826), (10408, 27430), (10972, 26020), (13010, 21944), (13715, 20816), (16880, 16913)]