80199990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:415

約数の個数: 128

約数和(自身を含む): 234218880

約数和(自身を除く): 154018890

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 73, 78, 90, 117, 130, 135, 146, 195, 219, 234, 270, 313, 351, 365, 390, 438, 585, 626, 657, 702, 730, 939, 949, 1095, 1170, 1314, 1565, 1755, 1878, 1898, 1971, 2190, 2817, 2847, 3130, 3285, 3510, 3942, 4069, 4695, 4745, 5634, 5694, 6570, 8138, 8451, 8541, 9390, 9490, 9855, 12207, 14085, 14235, 16902, 17082, 19710, 20345, 22849, 24414, 25623, 28170, 28470, 36621, 40690, 42255, 42705, 45698, 51246, 61035, 68547, 73242, 84510, 85410, 109863, 114245, 122070, 128115, 137094, 183105, 205641, 219726, 228490, 256230, 297037, 342735, 366210, 411282, 549315, 594074, 616923, 685470, 891111, 1028205, 1098630, 1233846, 1485185, 1782222, 2056410, 2673333, 2970370, 3084615, 4455555, 5346666, 6169230, 8019999, 8911110, 13366665, 16039998, 26733330, 40099995, 80199990]

約数ペア:

[(1, 80199990), (2, 40099995), (3, 26733330), (5, 16039998), (6, 13366665), (9, 8911110), (10, 8019999), (13, 6169230), (15, 5346666), (18, 4455555), (26, 3084615), (27, 2970370), (30, 2673333), (39, 2056410), (45, 1782222), (54, 1485185), (65, 1233846), (73, 1098630), (78, 1028205), (90, 891111), (117, 685470), (130, 616923), (135, 594074), (146, 549315), (195, 411282), (219, 366210), (234, 342735), (270, 297037), (313, 256230), (351, 228490), (365, 219726), (390, 205641), (438, 183105), (585, 137094), (626, 128115), (657, 122070), (702, 114245), (730, 109863), (939, 85410), (949, 84510), (1095, 73242), (1170, 68547), (1314, 61035), (1565, 51246), (1755, 45698), (1878, 42705), (1898, 42255), (1971, 40690), (2190, 36621), (2817, 28470), (2847, 28170), (3130, 25623), (3285, 24414), (3510, 22849), (3942, 20345), (4069, 19710), (4695, 17082), (4745, 16902), (5634, 14235), (5694, 14085), (6570, 12207), (8138, 9855), (8451, 9490), (8541, 9390)]