30931720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5903}}^1$

素因数の和:6045

約数の個数: 32

約数和(自身を含む): 70139520

約数和(自身を除く): 39207800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5903, 11806, 23612, 29515, 47224, 59030, 118060, 236120, 773293, 1546586, 3093172, 3866465, 6186344, 7732930, 15465860, 30931720]

約数ペア:

[(1, 30931720), (2, 15465860), (4, 7732930), (5, 6186344), (8, 3866465), (10, 3093172), (20, 1546586), (40, 773293), (131, 236120), (262, 118060), (524, 59030), (655, 47224), (1048, 29515), (1310, 23612), (2620, 11806), (5240, 5903)]