19732790

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{523}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 45273600

約数和(自身を除く): 25540810

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 343, 385, 490, 523, 539, 686, 770, 1046, 1078, 1715, 2615, 2695, 3430, 3661, 3773, 5230, 5390, 5753, 7322, 7546, 11506, 18305, 18865, 25627, 28765, 36610, 37730, 40271, 51254, 57530, 80542, 128135, 179389, 201355, 256270, 281897, 358778, 402710, 563794, 896945, 1409485, 1793890, 1973279, 2818970, 3946558, 9866395, 19732790]

約数ペア:

[(1, 19732790), (2, 9866395), (5, 3946558), (7, 2818970), (10, 1973279), (11, 1793890), (14, 1409485), (22, 896945), (35, 563794), (49, 402710), (55, 358778), (70, 281897), (77, 256270), (98, 201355), (110, 179389), (154, 128135), (245, 80542), (343, 57530), (385, 51254), (490, 40271), (523, 37730), (539, 36610), (686, 28765), (770, 25627), (1046, 18865), (1078, 18305), (1715, 11506), (2615, 7546), (2695, 7322), (3430, 5753), (3661, 5390), (3773, 5230)]