278766320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1759}}^1$

素因数の和:2062

約数の個数: 80

約数和(自身を含む): 743761920

約数和(自身を除く): 464995600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 283, 560, 566, 1132, 1415, 1759, 1981, 2264, 2830, 3518, 3962, 4528, 5660, 7036, 7924, 8795, 9905, 11320, 12313, 14072, 15848, 17590, 19810, 22640, 24626, 28144, 31696, 35180, 39620, 49252, 61565, 70360, 79240, 98504, 123130, 140720, 158480, 197008, 246260, 492520, 497797, 985040, 995594, 1991188, 2488985, 3484579, 3982376, 4977970, 6969158, 7964752, 9955940, 13938316, 17422895, 19911880, 27876632, 34845790, 39823760, 55753264, 69691580, 139383160, 278766320]

約数ペア:

[(1, 278766320), (2, 139383160), (4, 69691580), (5, 55753264), (7, 39823760), (8, 34845790), (10, 27876632), (14, 19911880), (16, 17422895), (20, 13938316), (28, 9955940), (35, 7964752), (40, 6969158), (56, 4977970), (70, 3982376), (80, 3484579), (112, 2488985), (140, 1991188), (280, 995594), (283, 985040), (560, 497797), (566, 492520), (1132, 246260), (1415, 197008), (1759, 158480), (1981, 140720), (2264, 123130), (2830, 98504), (3518, 79240), (3962, 70360), (4528, 61565), (5660, 49252), (7036, 39620), (7924, 35180), (8795, 31696), (9905, 28144), (11320, 24626), (12313, 22640), (14072, 19810), (15848, 17590)]