20151752660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{769}}^1\times {\mathrm{7753}}^1$

素因数の和:8557

約数の個数: 72

約数和(自身を含む): 45889877880

約数和(自身を除く): 25738125220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 769, 845, 1538, 1690, 3076, 3380, 3845, 7690, 7753, 9997, 15380, 15506, 19994, 31012, 38765, 39988, 49985, 77530, 99970, 100789, 129961, 155060, 199940, 201578, 259922, 403156, 503945, 519844, 649805, 1007890, 1299610, 1310257, 2015780, 2599220, 2620514, 5241028, 5962057, 6551285, 11924114, 13102570, 23848228, 26205140, 29810285, 59620570, 77506741, 119241140, 155013482, 310026964, 387533705, 775067410, 1007587633, 1550134820, 2015175266, 4030350532, 5037938165, 10075876330, 20151752660]

約数ペア:

[(1, 20151752660), (2, 10075876330), (4, 5037938165), (5, 4030350532), (10, 2015175266), (13, 1550134820), (20, 1007587633), (26, 775067410), (52, 387533705), (65, 310026964), (130, 155013482), (169, 119241140), (260, 77506741), (338, 59620570), (676, 29810285), (769, 26205140), (845, 23848228), (1538, 13102570), (1690, 11924114), (3076, 6551285), (3380, 5962057), (3845, 5241028), (7690, 2620514), (7753, 2599220), (9997, 2015780), (15380, 1310257), (15506, 1299610), (19994, 1007890), (31012, 649805), (38765, 519844), (39988, 503945), (49985, 403156), (77530, 259922), (99970, 201578), (100789, 199940), (129961, 155060)]