19374355

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:129

約数の個数: 64

約数和(自身を含む): 32256000

約数和(自身を除く): 12881645

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 79, 91, 143, 245, 343, 385, 395, 455, 539, 553, 637, 715, 869, 1001, 1027, 1715, 2695, 2765, 3185, 3773, 3871, 4345, 4459, 5005, 5135, 6083, 7007, 7189, 11297, 18865, 19355, 22295, 27097, 30415, 35035, 35945, 42581, 49049, 50323, 56485, 79079, 135485, 212905, 245245, 251615, 298067, 352261, 395395, 553553, 1490335, 1761305, 2767765, 3874871, 19374355]

約数ペア:

[(1, 19374355), (5, 3874871), (7, 2767765), (11, 1761305), (13, 1490335), (35, 553553), (49, 395395), (55, 352261), (65, 298067), (77, 251615), (79, 245245), (91, 212905), (143, 135485), (245, 79079), (343, 56485), (385, 50323), (395, 49049), (455, 42581), (539, 35945), (553, 35035), (637, 30415), (715, 27097), (869, 22295), (1001, 19355), (1027, 18865), (1715, 11297), (2695, 7189), (2765, 7007), (3185, 6083), (3773, 5135), (3871, 5005), (4345, 4459)]