1264716800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:546

約数の個数: 132

約数和(自身を含む): 3167773440

約数和(自身を除く): 1903056640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 254, 256, 320, 389, 400, 508, 512, 635, 640, 778, 800, 1016, 1024, 1270, 1280, 1556, 1600, 1945, 2032, 2540, 2560, 3112, 3175, 3200, 3890, 4064, 5080, 5120, 6224, 6350, 6400, 7780, 8128, 9725, 10160, 12448, 12700, 12800, 15560, 16256, 19450, 20320, 24896, 25400, 25600, 31120, 32512, 38900, 40640, 49403, 49792, 50800, 62240, 65024, 77800, 81280, 98806, 99584, 101600, 124480, 130048, 155600, 162560, 197612, 199168, 203200, 247015, 248960, 311200, 325120, 395224, 398336, 406400, 494030, 497920, 622400, 650240, 790448, 812800, 988060, 995840, 1235075, 1244800, 1580896, 1625600, 1976120, 1991680, 2470150, 2489600, 3161792, 3251200, 3952240, 4940300, 4979200, 6323584, 7904480, 9880600, 9958400, 12647168, 15808960, 19761200, 25294336, 31617920, 39522400, 50588672, 63235840, 79044800, 126471680, 158089600, 252943360, 316179200, 632358400, 1264716800]

約数ペア:

[(1, 1264716800), (2, 632358400), (4, 316179200), (5, 252943360), (8, 158089600), (10, 126471680), (16, 79044800), (20, 63235840), (25, 50588672), (32, 39522400), (40, 31617920), (50, 25294336), (64, 19761200), (80, 15808960), (100, 12647168), (127, 9958400), (128, 9880600), (160, 7904480), (200, 6323584), (254, 4979200), (256, 4940300), (320, 3952240), (389, 3251200), (400, 3161792), (508, 2489600), (512, 2470150), (635, 1991680), (640, 1976120), (778, 1625600), (800, 1580896), (1016, 1244800), (1024, 1235075), (1270, 995840), (1280, 988060), (1556, 812800), (1600, 790448), (1945, 650240), (2032, 622400), (2540, 497920), (2560, 494030), (3112, 406400), (3175, 398336), (3200, 395224), (3890, 325120), (4064, 311200), (5080, 248960), (5120, 247015), (6224, 203200), (6350, 199168), (6400, 197612), (7780, 162560), (8128, 155600), (9725, 130048), (10160, 124480), (12448, 101600), (12700, 99584), (12800, 98806), (15560, 81280), (16256, 77800), (19450, 65024), (20320, 62240), (24896, 50800), (25400, 49792), (25600, 49403), (31120, 40640), (32512, 38900)]