20785688

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{823}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 49835520

約数和(自身を除く): 29049832

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 41, 44, 56, 77, 82, 88, 154, 164, 287, 308, 328, 451, 574, 616, 823, 902, 1148, 1646, 1804, 2296, 3157, 3292, 3608, 5761, 6314, 6584, 9053, 11522, 12628, 18106, 23044, 25256, 33743, 36212, 46088, 63371, 67486, 72424, 126742, 134972, 236201, 253484, 269944, 371173, 472402, 506968, 742346, 944804, 1484692, 1889608, 2598211, 2969384, 5196422, 10392844, 20785688]

約数ペア:

[(1, 20785688), (2, 10392844), (4, 5196422), (7, 2969384), (8, 2598211), (11, 1889608), (14, 1484692), (22, 944804), (28, 742346), (41, 506968), (44, 472402), (56, 371173), (77, 269944), (82, 253484), (88, 236201), (154, 134972), (164, 126742), (287, 72424), (308, 67486), (328, 63371), (451, 46088), (574, 36212), (616, 33743), (823, 25256), (902, 23044), (1148, 18106), (1646, 12628), (1804, 11522), (2296, 9053), (3157, 6584), (3292, 6314), (3608, 5761)]