20255904

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{1153}}^1$

素因数の和:1230

約数の個数: 72

約数和(自身を含む): 58597812

約数和(自身を除く): 38341908

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 72, 96, 122, 144, 183, 244, 288, 366, 488, 549, 732, 976, 1098, 1153, 1464, 1952, 2196, 2306, 2928, 3459, 4392, 4612, 5856, 6918, 8784, 9224, 10377, 13836, 17568, 18448, 20754, 27672, 36896, 41508, 55344, 70333, 83016, 110688, 140666, 166032, 210999, 281332, 332064, 421998, 562664, 632997, 843996, 1125328, 1265994, 1687992, 2250656, 2531988, 3375984, 5063976, 6751968, 10127952, 20255904]

約数ペア:

[(1, 20255904), (2, 10127952), (3, 6751968), (4, 5063976), (6, 3375984), (8, 2531988), (9, 2250656), (12, 1687992), (16, 1265994), (18, 1125328), (24, 843996), (32, 632997), (36, 562664), (48, 421998), (61, 332064), (72, 281332), (96, 210999), (122, 166032), (144, 140666), (183, 110688), (244, 83016), (288, 70333), (366, 55344), (488, 41508), (549, 36896), (732, 27672), (976, 20754), (1098, 18448), (1153, 17568), (1464, 13836), (1952, 10377), (2196, 9224), (2306, 8784), (2928, 6918), (3459, 5856), (4392, 4612)]