187996815

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 349441920

約数和(自身を除く): 161445105

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 61, 111, 135, 183, 185, 305, 333, 549, 555, 617, 915, 999, 1647, 1665, 1851, 2257, 2745, 3085, 4995, 5553, 6771, 8235, 9255, 11285, 16659, 20313, 22829, 27765, 33855, 37637, 60939, 68487, 83295, 101565, 112911, 114145, 188185, 205461, 304695, 338733, 342435, 564555, 616383, 1016199, 1027305, 1392569, 1693665, 3081915, 4177707, 5080995, 6962845, 12533121, 20888535, 37599363, 62665605, 187996815]

約数ペア:

[(1, 187996815), (3, 62665605), (5, 37599363), (9, 20888535), (15, 12533121), (27, 6962845), (37, 5080995), (45, 4177707), (61, 3081915), (111, 1693665), (135, 1392569), (183, 1027305), (185, 1016199), (305, 616383), (333, 564555), (549, 342435), (555, 338733), (617, 304695), (915, 205461), (999, 188185), (1647, 114145), (1665, 112911), (1851, 101565), (2257, 83295), (2745, 68487), (3085, 60939), (4995, 37637), (5553, 33855), (6771, 27765), (8235, 22829), (9255, 20313), (11285, 16659)]