15550840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12541}}^1$

素因数の和:12583

約数の個数: 32

約数和(自身を含む): 36120960

約数和(自身を除く): 20570120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12541, 25082, 50164, 62705, 100328, 125410, 250820, 388771, 501640, 777542, 1555084, 1943855, 3110168, 3887710, 7775420, 15550840]

約数ペア:

[(1, 15550840), (2, 7775420), (4, 3887710), (5, 3110168), (8, 1943855), (10, 1555084), (20, 777542), (31, 501640), (40, 388771), (62, 250820), (124, 125410), (155, 100328), (248, 62705), (310, 50164), (620, 25082), (1240, 12541)]