18978067506

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{661}}^1\times {\mathrm{947}}^1$

素因数の和:1807

約数の個数: 64

約数和(自身を含む): 39522226176

約数和(自身を除く): 20544158670

約数列:

[1, 2, 3, 6, 31, 62, 93, 163, 186, 326, 489, 661, 947, 978, 1322, 1894, 1983, 2841, 3966, 5053, 5682, 10106, 15159, 20491, 29357, 30318, 40982, 58714, 61473, 88071, 107743, 122946, 154361, 176142, 215486, 308722, 323229, 463083, 625967, 646458, 926166, 1251934, 1877901, 3340033, 3755802, 4785191, 6680066, 9570382, 10020099, 14355573, 19404977, 20040198, 28711146, 38809954, 58214931, 102032621, 116429862, 204065242, 306097863, 612195726, 3163011251, 6326022502, 9489033753, 18978067506]

約数ペア:

[(1, 18978067506), (2, 9489033753), (3, 6326022502), (6, 3163011251), (31, 612195726), (62, 306097863), (93, 204065242), (163, 116429862), (186, 102032621), (326, 58214931), (489, 38809954), (661, 28711146), (947, 20040198), (978, 19404977), (1322, 14355573), (1894, 10020099), (1983, 9570382), (2841, 6680066), (3966, 4785191), (5053, 3755802), (5682, 3340033), (10106, 1877901), (15159, 1251934), (20491, 926166), (29357, 646458), (30318, 625967), (40982, 463083), (58714, 323229), (61473, 308722), (88071, 215486), (107743, 176142), (122946, 154361)]