201652780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20287}}^1$

素因数の和:20374

約数の個数: 48

約数和(自身を含む): 490807296

約数和(自身を除く): 289154516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 20287, 40574, 81148, 101435, 142009, 202870, 284018, 405740, 568036, 710045, 1420090, 1440377, 2840180, 2880754, 5761508, 7201885, 10082639, 14403770, 20165278, 28807540, 40330556, 50413195, 100826390, 201652780]

約数ペア:

[(1, 201652780), (2, 100826390), (4, 50413195), (5, 40330556), (7, 28807540), (10, 20165278), (14, 14403770), (20, 10082639), (28, 7201885), (35, 5761508), (70, 2880754), (71, 2840180), (140, 1440377), (142, 1420090), (284, 710045), (355, 568036), (497, 405740), (710, 284018), (994, 202870), (1420, 142009), (1988, 101435), (2485, 81148), (4970, 40574), (9940, 20287)]