20131492940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{313477}}^1$

素因数の和:313531

約数の個数: 72

約数和(自身を含む): 48187838160

約数和(自身を除く): 28056345220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1235, 1690, 2470, 3211, 3380, 4940, 6422, 12844, 16055, 32110, 64220, 313477, 626954, 1253908, 1567385, 3134770, 4075201, 5956063, 6269540, 8150402, 11912126, 16300804, 20376005, 23824252, 29780315, 40752010, 52977613, 59560630, 77428819, 81504020, 105955226, 119121260, 154857638, 211910452, 264888065, 309715276, 387144095, 529776130, 774288190, 1006574647, 1059552260, 1548576380, 2013149294, 4026298588, 5032873235, 10065746470, 20131492940]

約数ペア:

[(1, 20131492940), (2, 10065746470), (4, 5032873235), (5, 4026298588), (10, 2013149294), (13, 1548576380), (19, 1059552260), (20, 1006574647), (26, 774288190), (38, 529776130), (52, 387144095), (65, 309715276), (76, 264888065), (95, 211910452), (130, 154857638), (169, 119121260), (190, 105955226), (247, 81504020), (260, 77428819), (338, 59560630), (380, 52977613), (494, 40752010), (676, 29780315), (845, 23824252), (988, 20376005), (1235, 16300804), (1690, 11912126), (2470, 8150402), (3211, 6269540), (3380, 5956063), (4940, 4075201), (6422, 3134770), (12844, 1567385), (16055, 1253908), (32110, 626954), (64220, 313477)]