13838825

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 23748480

約数和(自身を除く): 9909655

約数列:

[1, 5, 7, 11, 13, 25, 35, 49, 55, 65, 77, 79, 91, 143, 175, 245, 275, 325, 385, 395, 455, 539, 553, 637, 715, 869, 1001, 1027, 1225, 1925, 1975, 2275, 2695, 2765, 3185, 3575, 3871, 4345, 5005, 5135, 6083, 7007, 7189, 11297, 13475, 13825, 15925, 19355, 21725, 25025, 25675, 30415, 35035, 35945, 42581, 50323, 56485, 79079, 96775, 152075, 175175, 179725, 212905, 251615, 282425, 395395, 553553, 1064525, 1258075, 1976975, 2767765, 13838825]

約数ペア:

[(1, 13838825), (5, 2767765), (7, 1976975), (11, 1258075), (13, 1064525), (25, 553553), (35, 395395), (49, 282425), (55, 251615), (65, 212905), (77, 179725), (79, 175175), (91, 152075), (143, 96775), (175, 79079), (245, 56485), (275, 50323), (325, 42581), (385, 35945), (395, 35035), (455, 30415), (539, 25675), (553, 25025), (637, 21725), (715, 19355), (869, 15925), (1001, 13825), (1027, 13475), (1225, 11297), (1925, 7189), (1975, 7007), (2275, 6083), (2695, 5135), (2765, 5005), (3185, 4345), (3575, 3871)]