31978045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 12811715

約数列:

[1, 5, 11, 19, 55, 71, 95, 209, 355, 431, 781, 1045, 1349, 2155, 3905, 4741, 6745, 8189, 14839, 23705, 30601, 40945, 74195, 90079, 153005, 336611, 450395, 581419, 1683055, 2907095, 6395609, 31978045]

約数ペア:

[(1, 31978045), (5, 6395609), (11, 2907095), (19, 1683055), (55, 581419), (71, 450395), (95, 336611), (209, 153005), (355, 90079), (431, 74195), (781, 40945), (1045, 30601), (1349, 23705), (2155, 14839), (3905, 8189), (4741, 6745)]