19485825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 36545280

約数和(自身を除く): 17059455

約数列:

[1, 3, 5, 15, 17, 25, 29, 31, 51, 75, 85, 87, 93, 145, 155, 255, 289, 425, 435, 465, 493, 527, 725, 775, 867, 899, 1275, 1445, 1479, 1581, 2175, 2325, 2465, 2635, 2697, 4335, 4495, 7225, 7395, 7905, 8381, 8959, 12325, 13175, 13485, 15283, 21675, 22475, 25143, 26877, 36975, 39525, 41905, 44795, 45849, 67425, 76415, 125715, 134385, 209525, 223975, 229245, 259811, 382075, 628575, 671925, 779433, 1146225, 1299055, 3897165, 6495275, 19485825]

約数ペア:

[(1, 19485825), (3, 6495275), (5, 3897165), (15, 1299055), (17, 1146225), (25, 779433), (29, 671925), (31, 628575), (51, 382075), (75, 259811), (85, 229245), (87, 223975), (93, 209525), (145, 134385), (155, 125715), (255, 76415), (289, 67425), (425, 45849), (435, 44795), (465, 41905), (493, 39525), (527, 36975), (725, 26877), (775, 25143), (867, 22475), (899, 21675), (1275, 15283), (1445, 13485), (1479, 13175), (1581, 12325), (2175, 8959), (2325, 8381), (2465, 7905), (2635, 7395), (2697, 7225), (4335, 4495)]