20255025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{941}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 39247488

約数和(自身を除く): 18992463

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 75, 105, 123, 175, 205, 287, 525, 615, 861, 941, 1025, 1435, 2823, 3075, 4305, 4705, 6587, 7175, 14115, 19761, 21525, 23525, 32935, 38581, 70575, 98805, 115743, 164675, 192905, 270067, 494025, 578715, 810201, 964525, 1350335, 2893575, 4051005, 6751675, 20255025]

約数ペア:

[(1, 20255025), (3, 6751675), (5, 4051005), (7, 2893575), (15, 1350335), (21, 964525), (25, 810201), (35, 578715), (41, 494025), (75, 270067), (105, 192905), (123, 164675), (175, 115743), (205, 98805), (287, 70575), (525, 38581), (615, 32935), (861, 23525), (941, 21525), (1025, 19761), (1435, 14115), (2823, 7175), (3075, 6587), (4305, 4705)]