20124851200

素因数分解:

$2^{10}\times 5^2\times {\mathrm{786127}}^1$

素因数の和:786157

約数の個数: 66

約数和(自身を含む): 49885324496

約数和(自身を除く): 29760473296

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, 2560, 3200, 5120, 6400, 12800, 25600, 786127, 1572254, 3144508, 3930635, 6289016, 7861270, 12578032, 15722540, 19653175, 25156064, 31445080, 39306350, 50312128, 62890160, 78612700, 100624256, 125780320, 157225400, 201248512, 251560640, 314450800, 402497024, 503121280, 628901600, 804994048, 1006242560, 1257803200, 2012485120, 2515606400, 4024970240, 5031212800, 10062425600, 20124851200]

約数ペア:

[(1, 20124851200), (2, 10062425600), (4, 5031212800), (5, 4024970240), (8, 2515606400), (10, 2012485120), (16, 1257803200), (20, 1006242560), (25, 804994048), (32, 628901600), (40, 503121280), (50, 402497024), (64, 314450800), (80, 251560640), (100, 201248512), (128, 157225400), (160, 125780320), (200, 100624256), (256, 78612700), (320, 62890160), (400, 50312128), (512, 39306350), (640, 31445080), (800, 25156064), (1024, 19653175), (1280, 15722540), (1600, 12578032), (2560, 7861270), (3200, 6289016), (5120, 3930635), (6400, 3144508), (12800, 1572254), (25600, 786127)]