20782784

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:633

約数の個数: 56

約数和(自身を含む): 45921168

約数和(自身を除く): 25138384

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 64, 88, 106, 176, 212, 352, 424, 557, 583, 704, 848, 1114, 1166, 1696, 2228, 2332, 3392, 4456, 4664, 6127, 8912, 9328, 12254, 17824, 18656, 24508, 29521, 35648, 37312, 49016, 59042, 98032, 118084, 196064, 236168, 324731, 392128, 472336, 649462, 944672, 1298924, 1889344, 2597848, 5195696, 10391392, 20782784]

約数ペア:

[(1, 20782784), (2, 10391392), (4, 5195696), (8, 2597848), (11, 1889344), (16, 1298924), (22, 944672), (32, 649462), (44, 472336), (53, 392128), (64, 324731), (88, 236168), (106, 196064), (176, 118084), (212, 98032), (352, 59042), (424, 49016), (557, 37312), (583, 35648), (704, 29521), (848, 24508), (1114, 18656), (1166, 17824), (1696, 12254), (2228, 9328), (2332, 8912), (3392, 6127), (4456, 4664)]