42905240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4943}}^1$

素因数の和:4992

約数の個数: 64

約数和(自身を含む): 113909760

約数和(自身を除く): 71004520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 4943, 8680, 9886, 19772, 24715, 34601, 39544, 49430, 69202, 98860, 138404, 153233, 173005, 197720, 276808, 306466, 346010, 612932, 692020, 766165, 1072631, 1225864, 1384040, 1532330, 2145262, 3064660, 4290524, 5363155, 6129320, 8581048, 10726310, 21452620, 42905240]

約数ペア:

[(1, 42905240), (2, 21452620), (4, 10726310), (5, 8581048), (7, 6129320), (8, 5363155), (10, 4290524), (14, 3064660), (20, 2145262), (28, 1532330), (31, 1384040), (35, 1225864), (40, 1072631), (56, 766165), (62, 692020), (70, 612932), (124, 346010), (140, 306466), (155, 276808), (217, 197720), (248, 173005), (280, 153233), (310, 138404), (434, 98860), (620, 69202), (868, 49430), (1085, 39544), (1240, 34601), (1736, 24715), (2170, 19772), (4340, 9886), (4943, 8680)]