287951940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{5693}}^1$

素因数の和:5989

約数の個数: 72

約数和(自身を含む): 876716568

約数和(自身を除く): 588764628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 562, 843, 1124, 1405, 1686, 2529, 2810, 3372, 4215, 5058, 5620, 5693, 8430, 10116, 11386, 12645, 16860, 17079, 22772, 25290, 28465, 34158, 50580, 51237, 56930, 68316, 85395, 102474, 113860, 170790, 204948, 256185, 341580, 512370, 1024740, 1599733, 3199466, 4799199, 6398932, 7998665, 9598398, 14397597, 15997330, 19196796, 23995995, 28795194, 31994660, 47991990, 57590388, 71987985, 95983980, 143975970, 287951940]

約数ペア:

[(1, 287951940), (2, 143975970), (3, 95983980), (4, 71987985), (5, 57590388), (6, 47991990), (9, 31994660), (10, 28795194), (12, 23995995), (15, 19196796), (18, 15997330), (20, 14397597), (30, 9598398), (36, 7998665), (45, 6398932), (60, 4799199), (90, 3199466), (180, 1599733), (281, 1024740), (562, 512370), (843, 341580), (1124, 256185), (1405, 204948), (1686, 170790), (2529, 113860), (2810, 102474), (3372, 85395), (4215, 68316), (5058, 56930), (5620, 51237), (5693, 50580), (8430, 34158), (10116, 28465), (11386, 25290), (12645, 22772), (16860, 17079)]