2780491688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{722581}}^1$

素因数の和:722637

約数の個数: 32

約数和(自身を含む): 5766204360

約数和(自身を除く): 2985712672

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 722581, 1445162, 2890324, 5780648, 9393553, 18787106, 26735497, 37574212, 53470994, 75148424, 106941988, 213883976, 347561461, 695122922, 1390245844, 2780491688]

約数ペア:

[(1, 2780491688), (2, 1390245844), (4, 695122922), (8, 347561461), (13, 213883976), (26, 106941988), (37, 75148424), (52, 53470994), (74, 37574212), (104, 26735497), (148, 18787106), (296, 9393553), (481, 5780648), (962, 2890324), (1924, 1445162), (3848, 722581)]