20884039240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27478999}}^1$

素因数の和:27479029

約数の個数: 32

約数和(自身を含む): 49462200000

約数和(自身を除く): 28578160760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27478999, 54957998, 109915996, 137394995, 219831992, 274789990, 522100981, 549579980, 1044201962, 1099159960, 2088403924, 2610504905, 4176807848, 5221009810, 10442019620, 20884039240]

約数ペア:

[(1, 20884039240), (2, 10442019620), (4, 5221009810), (5, 4176807848), (8, 2610504905), (10, 2088403924), (19, 1099159960), (20, 1044201962), (38, 549579980), (40, 522100981), (76, 274789990), (95, 219831992), (152, 137394995), (190, 109915996), (380, 54957998), (760, 27478999)]