18774964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 38510080

約数和(自身を除く): 19735116

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 613, 806, 988, 1178, 1226, 1612, 2356, 2452, 7657, 7969, 11647, 15314, 15938, 19003, 23294, 30628, 31876, 38006, 46588, 76012, 151411, 247039, 302822, 361057, 494078, 605644, 722114, 988156, 1444228, 4693741, 9387482, 18774964]

約数ペア:

[(1, 18774964), (2, 9387482), (4, 4693741), (13, 1444228), (19, 988156), (26, 722114), (31, 605644), (38, 494078), (52, 361057), (62, 302822), (76, 247039), (124, 151411), (247, 76012), (403, 46588), (494, 38006), (589, 31876), (613, 30628), (806, 23294), (988, 19003), (1178, 15938), (1226, 15314), (1612, 11647), (2356, 7969), (2452, 7657)]