28131075

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 58844448

約数和(自身を除く): 30713373

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 53, 63, 75, 105, 159, 175, 225, 265, 315, 337, 371, 477, 525, 795, 1011, 1113, 1325, 1575, 1685, 1855, 2359, 2385, 3033, 3339, 3975, 5055, 5565, 7077, 8425, 9275, 11795, 11925, 15165, 16695, 17861, 21231, 25275, 27825, 35385, 53583, 58975, 75825, 83475, 89305, 106155, 125027, 160749, 176925, 267915, 375081, 446525, 530775, 625135, 803745, 1125243, 1339575, 1875405, 3125675, 4018725, 5626215, 9377025, 28131075]

約数ペア:

[(1, 28131075), (3, 9377025), (5, 5626215), (7, 4018725), (9, 3125675), (15, 1875405), (21, 1339575), (25, 1125243), (35, 803745), (45, 625135), (53, 530775), (63, 446525), (75, 375081), (105, 267915), (159, 176925), (175, 160749), (225, 125027), (265, 106155), (315, 89305), (337, 83475), (371, 75825), (477, 58975), (525, 53583), (795, 35385), (1011, 27825), (1113, 25275), (1325, 21231), (1575, 17861), (1685, 16695), (1855, 15165), (2359, 11925), (2385, 11795), (3033, 9275), (3339, 8425), (3975, 7077), (5055, 5565)]