278387280

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{42961}}^1$

素因数の和:42986

約数の個数: 100

約数和(自身を含む): 966902772

約数和(自身を除く): 688515492

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 42961, 85922, 128883, 171844, 214805, 257766, 343688, 386649, 429610, 515532, 644415, 687376, 773298, 859220, 1031064, 1159947, 1288830, 1546596, 1718440, 1933245, 2062128, 2319894, 2577660, 3093192, 3436880, 3479841, 3866490, 4639788, 5155320, 5799735, 6186384, 6959682, 7732980, 9279576, 10310640, 11599470, 13919364, 15465960, 17399205, 18559152, 23198940, 27838728, 30931920, 34798410, 46397880, 55677456, 69596820, 92795760, 139193640, 278387280]

約数ペア:

[(1, 278387280), (2, 139193640), (3, 92795760), (4, 69596820), (5, 55677456), (6, 46397880), (8, 34798410), (9, 30931920), (10, 27838728), (12, 23198940), (15, 18559152), (16, 17399205), (18, 15465960), (20, 13919364), (24, 11599470), (27, 10310640), (30, 9279576), (36, 7732980), (40, 6959682), (45, 6186384), (48, 5799735), (54, 5155320), (60, 4639788), (72, 3866490), (80, 3479841), (81, 3436880), (90, 3093192), (108, 2577660), (120, 2319894), (135, 2062128), (144, 1933245), (162, 1718440), (180, 1546596), (216, 1288830), (240, 1159947), (270, 1031064), (324, 859220), (360, 773298), (405, 687376), (432, 644415), (540, 515532), (648, 429610), (720, 386649), (810, 343688), (1080, 257766), (1296, 214805), (1620, 171844), (2160, 128883), (3240, 85922), (6480, 42961)]