28135980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2333}}^1$

素因数の和:2415

約数の個数: 72

約数和(自身を含む): 86656752

約数和(自身を除く): 58520772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 2010, 2333, 2412, 3015, 4020, 4666, 6030, 6999, 9332, 11665, 12060, 13998, 20997, 23330, 27996, 34995, 41994, 46660, 69990, 83988, 104985, 139980, 156311, 209970, 312622, 419940, 468933, 625244, 781555, 937866, 1406799, 1563110, 1875732, 2344665, 2813598, 3126220, 4689330, 5627196, 7033995, 9378660, 14067990, 28135980]

約数ペア:

[(1, 28135980), (2, 14067990), (3, 9378660), (4, 7033995), (5, 5627196), (6, 4689330), (9, 3126220), (10, 2813598), (12, 2344665), (15, 1875732), (18, 1563110), (20, 1406799), (30, 937866), (36, 781555), (45, 625244), (60, 468933), (67, 419940), (90, 312622), (134, 209970), (180, 156311), (201, 139980), (268, 104985), (335, 83988), (402, 69990), (603, 46660), (670, 41994), (804, 34995), (1005, 27996), (1206, 23330), (1340, 20997), (2010, 13998), (2333, 12060), (2412, 11665), (3015, 9332), (4020, 6999), (4666, 6030)]