20387664

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:297

約数の個数: 120

約数和(自身を含む): 63564384

約数和(自身を除く): 43176720

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 61, 66, 72, 88, 99, 122, 132, 144, 176, 183, 198, 211, 244, 264, 366, 396, 422, 488, 528, 549, 633, 671, 732, 792, 844, 976, 1098, 1266, 1342, 1464, 1584, 1688, 1899, 2013, 2196, 2321, 2532, 2684, 2928, 3376, 3798, 4026, 4392, 4642, 5064, 5368, 6039, 6963, 7596, 8052, 8784, 9284, 10128, 10736, 12078, 12871, 13926, 15192, 16104, 18568, 20889, 24156, 25742, 27852, 30384, 32208, 37136, 38613, 41778, 48312, 51484, 55704, 77226, 83556, 96624, 102968, 111408, 115839, 141581, 154452, 167112, 205936, 231678, 283162, 308904, 334224, 424743, 463356, 566324, 617808, 849486, 926712, 1132648, 1274229, 1698972, 1853424, 2265296, 2548458, 3397944, 5096916, 6795888, 10193832, 20387664]

約数ペア:

[(1, 20387664), (2, 10193832), (3, 6795888), (4, 5096916), (6, 3397944), (8, 2548458), (9, 2265296), (11, 1853424), (12, 1698972), (16, 1274229), (18, 1132648), (22, 926712), (24, 849486), (33, 617808), (36, 566324), (44, 463356), (48, 424743), (61, 334224), (66, 308904), (72, 283162), (88, 231678), (99, 205936), (122, 167112), (132, 154452), (144, 141581), (176, 115839), (183, 111408), (198, 102968), (211, 96624), (244, 83556), (264, 77226), (366, 55704), (396, 51484), (422, 48312), (488, 41778), (528, 38613), (549, 37136), (633, 32208), (671, 30384), (732, 27852), (792, 25742), (844, 24156), (976, 20889), (1098, 18568), (1266, 16104), (1342, 15192), (1464, 13926), (1584, 12871), (1688, 12078), (1899, 10736), (2013, 10128), (2196, 9284), (2321, 8784), (2532, 8052), (2684, 7596), (2928, 6963), (3376, 6039), (3798, 5368), (4026, 5064), (4392, 4642)]