8978740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 19958400

約数和(自身を除く): 10979660

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 131, 149, 230, 262, 298, 460, 524, 596, 655, 745, 1310, 1490, 2620, 2980, 3013, 3427, 6026, 6854, 12052, 13708, 15065, 17135, 19519, 30130, 34270, 39038, 60260, 68540, 78076, 97595, 195190, 390380, 448937, 897874, 1795748, 2244685, 4489370, 8978740]

約数ペア:

[(1, 8978740), (2, 4489370), (4, 2244685), (5, 1795748), (10, 897874), (20, 448937), (23, 390380), (46, 195190), (92, 97595), (115, 78076), (131, 68540), (149, 60260), (230, 39038), (262, 34270), (298, 30130), (460, 19519), (524, 17135), (596, 15065), (655, 13708), (745, 12052), (1310, 6854), (1490, 6026), (2620, 3427), (2980, 3013)]