64818090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{557}}^1$

素因数の和:1004

約数の個数: 64

約数和(自身を含む): 173560320

約数和(自身を除く): 108742230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 431, 557, 862, 1114, 1293, 1671, 2155, 2586, 2785, 3342, 3879, 4310, 5013, 5570, 6465, 7758, 8355, 10026, 11637, 12930, 15039, 16710, 19395, 23274, 25065, 30078, 38790, 50130, 58185, 75195, 116370, 150390, 240067, 480134, 720201, 1200335, 1440402, 2160603, 2400670, 3601005, 4321206, 6481809, 7202010, 10803015, 12963618, 21606030, 32409045, 64818090]

約数ペア:

[(1, 64818090), (2, 32409045), (3, 21606030), (5, 12963618), (6, 10803015), (9, 7202010), (10, 6481809), (15, 4321206), (18, 3601005), (27, 2400670), (30, 2160603), (45, 1440402), (54, 1200335), (90, 720201), (135, 480134), (270, 240067), (431, 150390), (557, 116370), (862, 75195), (1114, 58185), (1293, 50130), (1671, 38790), (2155, 30078), (2586, 25065), (2785, 23274), (3342, 19395), (3879, 16710), (4310, 15039), (5013, 12930), (5570, 11637), (6465, 10026), (7758, 8355)]