243623420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{887}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 529901568

約数和(自身を除く): 286278148

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 443, 620, 886, 887, 1772, 1774, 2215, 3548, 4430, 4435, 8860, 8870, 13733, 17740, 27466, 27497, 54932, 54994, 68665, 109988, 137330, 137485, 274660, 274970, 392941, 549940, 785882, 1571764, 1964705, 3929410, 7858820, 12181171, 24362342, 48724684, 60905855, 121811710, 243623420]

約数ペア:

[(1, 243623420), (2, 121811710), (4, 60905855), (5, 48724684), (10, 24362342), (20, 12181171), (31, 7858820), (62, 3929410), (124, 1964705), (155, 1571764), (310, 785882), (443, 549940), (620, 392941), (886, 274970), (887, 274660), (1772, 137485), (1774, 137330), (2215, 109988), (3548, 68665), (4430, 54994), (4435, 54932), (8860, 27497), (8870, 27466), (13733, 17740)]