9911720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 96

約数和(自身を含む): 28009800

約数和(自身を除く): 18098080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 389, 392, 455, 490, 520, 637, 728, 778, 910, 980, 1274, 1556, 1820, 1945, 1960, 2548, 2723, 3112, 3185, 3640, 3890, 5057, 5096, 5446, 6370, 7780, 10114, 10892, 12740, 13615, 15560, 19061, 20228, 21784, 25285, 25480, 27230, 35399, 38122, 40456, 50570, 54460, 70798, 76244, 95305, 101140, 108920, 141596, 152488, 176995, 190610, 202280, 247793, 283192, 353990, 381220, 495586, 707980, 762440, 991172, 1238965, 1415960, 1982344, 2477930, 4955860, 9911720]

約数ペア:

[(1, 9911720), (2, 4955860), (4, 2477930), (5, 1982344), (7, 1415960), (8, 1238965), (10, 991172), (13, 762440), (14, 707980), (20, 495586), (26, 381220), (28, 353990), (35, 283192), (40, 247793), (49, 202280), (52, 190610), (56, 176995), (65, 152488), (70, 141596), (91, 108920), (98, 101140), (104, 95305), (130, 76244), (140, 70798), (182, 54460), (196, 50570), (245, 40456), (260, 38122), (280, 35399), (364, 27230), (389, 25480), (392, 25285), (455, 21784), (490, 20228), (520, 19061), (637, 15560), (728, 13615), (778, 12740), (910, 10892), (980, 10114), (1274, 7780), (1556, 6370), (1820, 5446), (1945, 5096), (1960, 5057), (2548, 3890), (2723, 3640), (3112, 3185)]