138737905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 180956160

約数和(自身を除く): 42218255

約数列:

[1, 5, 19, 67, 71, 95, 307, 335, 355, 1273, 1349, 1535, 4757, 5833, 6365, 6745, 20569, 21797, 23785, 29165, 90383, 102845, 108985, 390811, 414143, 451915, 1460399, 1954055, 2070715, 7301995, 27747581, 138737905]

約数ペア:

[(1, 138737905), (5, 27747581), (19, 7301995), (67, 2070715), (71, 1954055), (95, 1460399), (307, 451915), (335, 414143), (355, 390811), (1273, 108985), (1349, 102845), (1535, 90383), (4757, 29165), (5833, 23785), (6365, 21797), (6745, 20569)]