20062540520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{127}}^2\times {\mathrm{257}}^1$

素因数の和:544

約数の個数: 144

約数和(自身を含む): 50205842820

約数和(自身を除く): 30143302300

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 127, 220, 242, 254, 257, 440, 484, 508, 514, 605, 635, 968, 1016, 1028, 1210, 1270, 1285, 1397, 2056, 2420, 2540, 2570, 2794, 2827, 4840, 5080, 5140, 5588, 5654, 6985, 10280, 11176, 11308, 13970, 14135, 15367, 16129, 22616, 27940, 28270, 30734, 31097, 32258, 32639, 55880, 56540, 61468, 62194, 64516, 65278, 76835, 80645, 113080, 122936, 124388, 129032, 130556, 153670, 155485, 161290, 163195, 177419, 248776, 261112, 307340, 310970, 322580, 326390, 354838, 359029, 614680, 621940, 645160, 652780, 709676, 718058, 887095, 1243880, 1305560, 1419352, 1436116, 1774190, 1795145, 1951609, 2872232, 3548380, 3590290, 3903218, 3949319, 4145153, 7096760, 7180580, 7806436, 7898638, 8290306, 9758045, 14361160, 15612872, 15797276, 16580612, 19516090, 19746595, 20725765, 31594552, 33161224, 39032180, 39493190, 41451530, 45596683, 78064360, 78986380, 82903060, 91193366, 157972760, 165806120, 182386732, 227983415, 364773464, 455966830, 501563513, 911933660, 1003127026, 1823867320, 2006254052, 2507817565, 4012508104, 5015635130, 10031270260, 20062540520]

約数ペア:

[(1, 20062540520), (2, 10031270260), (4, 5015635130), (5, 4012508104), (8, 2507817565), (10, 2006254052), (11, 1823867320), (20, 1003127026), (22, 911933660), (40, 501563513), (44, 455966830), (55, 364773464), (88, 227983415), (110, 182386732), (121, 165806120), (127, 157972760), (220, 91193366), (242, 82903060), (254, 78986380), (257, 78064360), (440, 45596683), (484, 41451530), (508, 39493190), (514, 39032180), (605, 33161224), (635, 31594552), (968, 20725765), (1016, 19746595), (1028, 19516090), (1210, 16580612), (1270, 15797276), (1285, 15612872), (1397, 14361160), (2056, 9758045), (2420, 8290306), (2540, 7898638), (2570, 7806436), (2794, 7180580), (2827, 7096760), (4840, 4145153), (5080, 3949319), (5140, 3903218), (5588, 3590290), (5654, 3548380), (6985, 2872232), (10280, 1951609), (11176, 1795145), (11308, 1774190), (13970, 1436116), (14135, 1419352), (15367, 1305560), (16129, 1243880), (22616, 887095), (27940, 718058), (28270, 709676), (30734, 652780), (31097, 645160), (32258, 621940), (32639, 614680), (55880, 359029), (56540, 354838), (61468, 326390), (62194, 322580), (64516, 310970), (65278, 307340), (76835, 261112), (80645, 248776), (113080, 177419), (122936, 163195), (124388, 161290), (129032, 155485), (130556, 153670)]