1728409600

素因数分解:

$2^{12}\times 5^2\times {\mathrm{16879}}^1$

素因数の和:16913

約数の個数: 78

約数和(自身を含む): 4286186480

約数和(自身を除く): 2557776880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1600, 2048, 2560, 3200, 4096, 5120, 6400, 10240, 12800, 16879, 20480, 25600, 33758, 51200, 67516, 84395, 102400, 135032, 168790, 270064, 337580, 421975, 540128, 675160, 843950, 1080256, 1350320, 1687900, 2160512, 2700640, 3375800, 4321024, 5401280, 6751600, 8642048, 10802560, 13503200, 17284096, 21605120, 27006400, 34568192, 43210240, 54012800, 69136384, 86420480, 108025600, 172840960, 216051200, 345681920, 432102400, 864204800, 1728409600]

約数ペア:

[(1, 1728409600), (2, 864204800), (4, 432102400), (5, 345681920), (8, 216051200), (10, 172840960), (16, 108025600), (20, 86420480), (25, 69136384), (32, 54012800), (40, 43210240), (50, 34568192), (64, 27006400), (80, 21605120), (100, 17284096), (128, 13503200), (160, 10802560), (200, 8642048), (256, 6751600), (320, 5401280), (400, 4321024), (512, 3375800), (640, 2700640), (800, 2160512), (1024, 1687900), (1280, 1350320), (1600, 1080256), (2048, 843950), (2560, 675160), (3200, 540128), (4096, 421975), (5120, 337580), (6400, 270064), (10240, 168790), (12800, 135032), (16879, 102400), (20480, 84395), (25600, 67516), (33758, 51200)]