20147776688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{149713}}^1$

素因数の和:150381

約数の個数: 40

約数和(自身を含む): 42104367648

約数和(自身を除く): 21956590960

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 647, 1294, 2588, 5176, 8411, 10352, 16822, 33644, 67288, 134576, 149713, 299426, 598852, 1197704, 1946269, 2395408, 3892538, 7785076, 15570152, 31140304, 96864311, 193728622, 387457244, 774914488, 1259236043, 1549828976, 2518472086, 5036944172, 10073888344, 20147776688]

約数ペア:

[(1, 20147776688), (2, 10073888344), (4, 5036944172), (8, 2518472086), (13, 1549828976), (16, 1259236043), (26, 774914488), (52, 387457244), (104, 193728622), (208, 96864311), (647, 31140304), (1294, 15570152), (2588, 7785076), (5176, 3892538), (8411, 2395408), (10352, 1946269), (16822, 1197704), (33644, 598852), (67288, 299426), (134576, 149713)]