2756557840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{2027}}^1$

素因数の和:2320

約数の個数: 80

約数和(自身を含む): 6518154240

約数和(自身を除く): 3761596400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 191, 356, 382, 445, 712, 764, 890, 955, 1424, 1528, 1780, 1910, 2027, 3056, 3560, 3820, 4054, 7120, 7640, 8108, 10135, 15280, 16216, 16999, 20270, 32432, 33998, 40540, 67996, 81080, 84995, 135992, 162160, 169990, 180403, 271984, 339980, 360806, 387157, 679960, 721612, 774314, 902015, 1359920, 1443224, 1548628, 1804030, 1935785, 2886448, 3097256, 3608060, 3871570, 6194512, 7216120, 7743140, 14432240, 15486280, 30972560, 34456973, 68913946, 137827892, 172284865, 275655784, 344569730, 551311568, 689139460, 1378278920, 2756557840]

約数ペア:

[(1, 2756557840), (2, 1378278920), (4, 689139460), (5, 551311568), (8, 344569730), (10, 275655784), (16, 172284865), (20, 137827892), (40, 68913946), (80, 34456973), (89, 30972560), (178, 15486280), (191, 14432240), (356, 7743140), (382, 7216120), (445, 6194512), (712, 3871570), (764, 3608060), (890, 3097256), (955, 2886448), (1424, 1935785), (1528, 1804030), (1780, 1548628), (1910, 1443224), (2027, 1359920), (3056, 902015), (3560, 774314), (3820, 721612), (4054, 679960), (7120, 387157), (7640, 360806), (8108, 339980), (10135, 271984), (15280, 180403), (16216, 169990), (16999, 162160), (20270, 135992), (32432, 84995), (33998, 81080), (40540, 67996)]