20117552

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 49288512

約数和(自身を除く): 29170960

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 41, 52, 56, 82, 91, 104, 112, 164, 182, 208, 287, 328, 337, 364, 533, 574, 656, 674, 728, 1066, 1148, 1348, 1456, 2132, 2296, 2359, 2696, 3731, 4264, 4381, 4592, 4718, 5392, 7462, 8528, 8762, 9436, 13817, 14924, 17524, 18872, 27634, 29848, 30667, 35048, 37744, 55268, 59696, 61334, 70096, 96719, 110536, 122668, 179621, 193438, 221072, 245336, 359242, 386876, 490672, 718484, 773752, 1257347, 1436968, 1547504, 2514694, 2873936, 5029388, 10058776, 20117552]

約数ペア:

[(1, 20117552), (2, 10058776), (4, 5029388), (7, 2873936), (8, 2514694), (13, 1547504), (14, 1436968), (16, 1257347), (26, 773752), (28, 718484), (41, 490672), (52, 386876), (56, 359242), (82, 245336), (91, 221072), (104, 193438), (112, 179621), (164, 122668), (182, 110536), (208, 96719), (287, 70096), (328, 61334), (337, 59696), (364, 55268), (533, 37744), (574, 35048), (656, 30667), (674, 29848), (728, 27634), (1066, 18872), (1148, 17524), (1348, 14924), (1456, 13817), (2132, 9436), (2296, 8762), (2359, 8528), (2696, 7462), (3731, 5392), (4264, 4718), (4381, 4592)]