39940090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6781}}^1$

素因数の和:6838

約数の個数: 32

約数和(自身を含む): 78128640

約数和(自身を除く): 38188550

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 5890, 6781, 13562, 33905, 67810, 128839, 210211, 257678, 420422, 644195, 1051055, 1288390, 2102110, 3994009, 7988018, 19970045, 39940090]

約数ペア:

[(1, 39940090), (2, 19970045), (5, 7988018), (10, 3994009), (19, 2102110), (31, 1288390), (38, 1051055), (62, 644195), (95, 420422), (155, 257678), (190, 210211), (310, 128839), (589, 67810), (1178, 33905), (2945, 13562), (5890, 6781)]