20419968

素因数分解:

$2^7\times 3^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1355

約数の個数: 64

約数和(自身を含む): 55606320

約数和(自身を除く): 35186352

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 128, 164, 192, 246, 328, 384, 492, 656, 984, 1297, 1312, 1968, 2594, 2624, 3891, 3936, 5188, 5248, 7782, 7872, 10376, 15564, 15744, 20752, 31128, 41504, 53177, 62256, 83008, 106354, 124512, 159531, 166016, 212708, 249024, 319062, 425416, 498048, 638124, 850832, 1276248, 1701664, 2552496, 3403328, 5104992, 6806656, 10209984, 20419968]

約数ペア:

[(1, 20419968), (2, 10209984), (3, 6806656), (4, 5104992), (6, 3403328), (8, 2552496), (12, 1701664), (16, 1276248), (24, 850832), (32, 638124), (41, 498048), (48, 425416), (64, 319062), (82, 249024), (96, 212708), (123, 166016), (128, 159531), (164, 124512), (192, 106354), (246, 83008), (328, 62256), (384, 53177), (492, 41504), (656, 31128), (984, 20752), (1297, 15744), (1312, 15564), (1968, 10376), (2594, 7872), (2624, 7782), (3891, 5248), (3936, 5188)]