64548940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 138910464

約数和(自身を除く): 74361524

約数列:

[1, 2, 4, 5, 10, 20, 71, 131, 142, 262, 284, 347, 355, 524, 655, 694, 710, 1310, 1388, 1420, 1735, 2620, 3470, 6940, 9301, 18602, 24637, 37204, 45457, 46505, 49274, 90914, 93010, 98548, 123185, 181828, 186020, 227285, 246370, 454570, 492740, 909140, 3227447, 6454894, 12909788, 16137235, 32274470, 64548940]

約数ペア:

[(1, 64548940), (2, 32274470), (4, 16137235), (5, 12909788), (10, 6454894), (20, 3227447), (71, 909140), (131, 492740), (142, 454570), (262, 246370), (284, 227285), (347, 186020), (355, 181828), (524, 123185), (655, 98548), (694, 93010), (710, 90914), (1310, 49274), (1388, 46505), (1420, 45457), (1735, 37204), (2620, 24637), (3470, 18602), (6940, 9301)]