51416960

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:548

約数の個数: 128

約数和(自身を含む): 146880000

約数和(自身を除く): 95463040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 499, 560, 640, 644, 736, 805, 896, 920, 998, 1120, 1288, 1472, 1610, 1840, 1996, 2240, 2495, 2576, 2944, 3220, 3493, 3680, 3992, 4480, 4990, 5152, 6440, 6986, 7360, 7984, 9980, 10304, 11477, 12880, 13972, 14720, 15968, 17465, 19960, 20608, 22954, 25760, 27944, 31936, 34930, 39920, 45908, 51520, 55888, 57385, 63872, 69860, 79840, 80339, 91816, 103040, 111776, 114770, 139720, 159680, 160678, 183632, 223552, 229540, 279440, 319360, 321356, 367264, 401695, 447104, 459080, 558880, 642712, 734528, 803390, 918160, 1117760, 1285424, 1469056, 1606780, 1836320, 2235520, 2570848, 3213560, 3672640, 5141696, 6427120, 7345280, 10283392, 12854240, 25708480, 51416960]

約数ペア:

[(1, 51416960), (2, 25708480), (4, 12854240), (5, 10283392), (7, 7345280), (8, 6427120), (10, 5141696), (14, 3672640), (16, 3213560), (20, 2570848), (23, 2235520), (28, 1836320), (32, 1606780), (35, 1469056), (40, 1285424), (46, 1117760), (56, 918160), (64, 803390), (70, 734528), (80, 642712), (92, 558880), (112, 459080), (115, 447104), (128, 401695), (140, 367264), (160, 321356), (161, 319360), (184, 279440), (224, 229540), (230, 223552), (280, 183632), (320, 160678), (322, 159680), (368, 139720), (448, 114770), (460, 111776), (499, 103040), (560, 91816), (640, 80339), (644, 79840), (736, 69860), (805, 63872), (896, 57385), (920, 55888), (998, 51520), (1120, 45908), (1288, 39920), (1472, 34930), (1610, 31936), (1840, 27944), (1996, 25760), (2240, 22954), (2495, 20608), (2576, 19960), (2944, 17465), (3220, 15968), (3493, 14720), (3680, 13972), (3992, 12880), (4480, 11477), (4990, 10304), (5152, 9980), (6440, 7984), (6986, 7360)]