20878872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 65126400

約数和(自身を除く): 44247528

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 31, 38, 42, 56, 57, 62, 76, 84, 93, 114, 124, 133, 152, 168, 186, 211, 217, 228, 248, 266, 372, 399, 422, 434, 456, 532, 589, 633, 651, 744, 798, 844, 868, 1064, 1178, 1266, 1302, 1477, 1596, 1688, 1736, 1767, 2356, 2532, 2604, 2954, 3192, 3534, 4009, 4123, 4431, 4712, 5064, 5208, 5908, 6541, 7068, 8018, 8246, 8862, 11816, 12027, 12369, 13082, 14136, 16036, 16492, 17724, 19623, 24054, 24738, 26164, 28063, 32072, 32984, 35448, 39246, 45787, 48108, 49476, 52328, 56126, 78492, 84189, 91574, 96216, 98952, 112252, 124279, 137361, 156984, 168378, 183148, 224504, 248558, 274722, 336756, 366296, 372837, 497116, 549444, 673512, 745674, 869953, 994232, 1098888, 1491348, 1739906, 2609859, 2982696, 3479812, 5219718, 6959624, 10439436, 20878872]

約数ペア:

[(1, 20878872), (2, 10439436), (3, 6959624), (4, 5219718), (6, 3479812), (7, 2982696), (8, 2609859), (12, 1739906), (14, 1491348), (19, 1098888), (21, 994232), (24, 869953), (28, 745674), (31, 673512), (38, 549444), (42, 497116), (56, 372837), (57, 366296), (62, 336756), (76, 274722), (84, 248558), (93, 224504), (114, 183148), (124, 168378), (133, 156984), (152, 137361), (168, 124279), (186, 112252), (211, 98952), (217, 96216), (228, 91574), (248, 84189), (266, 78492), (372, 56126), (399, 52328), (422, 49476), (434, 48108), (456, 45787), (532, 39246), (589, 35448), (633, 32984), (651, 32072), (744, 28063), (798, 26164), (844, 24738), (868, 24054), (1064, 19623), (1178, 17724), (1266, 16492), (1302, 16036), (1477, 14136), (1596, 13082), (1688, 12369), (1736, 12027), (1767, 11816), (2356, 8862), (2532, 8246), (2604, 8018), (2954, 7068), (3192, 6541), (3534, 5908), (4009, 5208), (4123, 5064), (4431, 4712)]