15940925

素因数分解:

$5^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2$

素因数の和:68

約数の個数: 72

約数和(自身を含む): 27230400

約数和(自身を除く): 11289475

約数列:

[1, 5, 7, 11, 13, 25, 35, 49, 55, 65, 77, 91, 143, 169, 175, 245, 275, 325, 343, 385, 455, 539, 637, 715, 845, 1001, 1183, 1225, 1715, 1859, 1925, 2275, 2695, 3185, 3575, 3773, 4225, 4459, 5005, 5915, 7007, 8281, 8575, 9295, 13013, 13475, 15925, 18865, 22295, 25025, 29575, 35035, 41405, 46475, 49049, 57967, 65065, 91091, 94325, 111475, 175175, 207025, 245245, 289835, 325325, 455455, 637637, 1226225, 1449175, 2277275, 3188185, 15940925]

約数ペア:

[(1, 15940925), (5, 3188185), (7, 2277275), (11, 1449175), (13, 1226225), (25, 637637), (35, 455455), (49, 325325), (55, 289835), (65, 245245), (77, 207025), (91, 175175), (143, 111475), (169, 94325), (175, 91091), (245, 65065), (275, 57967), (325, 49049), (343, 46475), (385, 41405), (455, 35035), (539, 29575), (637, 25025), (715, 22295), (845, 18865), (1001, 15925), (1183, 13475), (1225, 13013), (1715, 9295), (1859, 8575), (1925, 8281), (2275, 7007), (2695, 5915), (3185, 5005), (3575, 4459), (3773, 4225)]