201555280

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{457}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 485571600

約数和(自身を除く): 284016320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 149, 185, 296, 298, 370, 457, 592, 596, 740, 745, 914, 1192, 1480, 1490, 1828, 2285, 2384, 2960, 2980, 3656, 4570, 5513, 5960, 7312, 9140, 11026, 11920, 16909, 18280, 22052, 27565, 33818, 36560, 44104, 55130, 67636, 68093, 84545, 88208, 110260, 135272, 136186, 169090, 220520, 270544, 272372, 338180, 340465, 441040, 544744, 676360, 680930, 1089488, 1352720, 1361860, 2519441, 2723720, 5038882, 5447440, 10077764, 12597205, 20155528, 25194410, 40311056, 50388820, 100777640, 201555280]

約数ペア:

[(1, 201555280), (2, 100777640), (4, 50388820), (5, 40311056), (8, 25194410), (10, 20155528), (16, 12597205), (20, 10077764), (37, 5447440), (40, 5038882), (74, 2723720), (80, 2519441), (148, 1361860), (149, 1352720), (185, 1089488), (296, 680930), (298, 676360), (370, 544744), (457, 441040), (592, 340465), (596, 338180), (740, 272372), (745, 270544), (914, 220520), (1192, 169090), (1480, 136186), (1490, 135272), (1828, 110260), (2285, 88208), (2384, 84545), (2960, 68093), (2980, 67636), (3656, 55130), (4570, 44104), (5513, 36560), (5960, 33818), (7312, 27565), (9140, 22052), (11026, 18280), (11920, 16909)]