20503028

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 48168960

約数和(自身を除く): 27665932

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 31, 46, 52, 62, 79, 91, 92, 124, 158, 161, 182, 217, 299, 316, 322, 364, 403, 434, 553, 598, 644, 713, 806, 868, 1027, 1106, 1196, 1426, 1612, 1817, 2054, 2093, 2212, 2449, 2821, 2852, 3634, 4108, 4186, 4898, 4991, 5642, 7189, 7268, 8372, 9269, 9796, 9982, 11284, 12719, 14378, 17143, 18538, 19964, 23621, 25438, 28756, 31837, 34286, 37076, 47242, 50876, 56327, 63674, 64883, 68572, 94484, 112654, 127348, 129766, 165347, 222859, 225308, 259532, 330694, 394289, 445718, 661388, 732251, 788578, 891436, 1464502, 1577156, 2929004, 5125757, 10251514, 20503028]

約数ペア:

[(1, 20503028), (2, 10251514), (4, 5125757), (7, 2929004), (13, 1577156), (14, 1464502), (23, 891436), (26, 788578), (28, 732251), (31, 661388), (46, 445718), (52, 394289), (62, 330694), (79, 259532), (91, 225308), (92, 222859), (124, 165347), (158, 129766), (161, 127348), (182, 112654), (217, 94484), (299, 68572), (316, 64883), (322, 63674), (364, 56327), (403, 50876), (434, 47242), (553, 37076), (598, 34286), (644, 31837), (713, 28756), (806, 25438), (868, 23621), (1027, 19964), (1106, 18538), (1196, 17143), (1426, 14378), (1612, 12719), (1817, 11284), (2054, 9982), (2093, 9796), (2212, 9269), (2449, 8372), (2821, 7268), (2852, 7189), (3634, 5642), (4108, 4991), (4186, 4898)]