201278960

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{4943}}^1$

素因数の和:5465

約数の個数: 40

約数和(自身を含む): 468987840

約数和(自身を除く): 267708880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 4072, 4943, 5090, 8144, 9886, 10180, 19772, 20360, 24715, 39544, 40720, 49430, 79088, 98860, 197720, 395440, 2515987, 5031974, 10063948, 12579935, 20127896, 25159870, 40255792, 50319740, 100639480, 201278960]

約数ペア:

[(1, 201278960), (2, 100639480), (4, 50319740), (5, 40255792), (8, 25159870), (10, 20127896), (16, 12579935), (20, 10063948), (40, 5031974), (80, 2515987), (509, 395440), (1018, 197720), (2036, 98860), (2545, 79088), (4072, 49430), (4943, 40720), (5090, 39544), (8144, 24715), (9886, 20360), (10180, 19772)]