30921975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{677}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 65576160

約数和(自身を除く): 34654185

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 63, 75, 87, 105, 145, 175, 203, 225, 261, 315, 435, 525, 609, 677, 725, 1015, 1305, 1575, 1827, 2031, 2175, 3045, 3385, 4739, 5075, 6093, 6525, 9135, 10155, 14217, 15225, 16925, 19633, 23695, 30465, 42651, 45675, 50775, 58899, 71085, 98165, 118475, 137431, 152325, 176697, 213255, 294495, 355425, 412293, 490825, 687155, 883485, 1066275, 1236879, 1472475, 2061465, 3435775, 4417425, 6184395, 10307325, 30921975]

約数ペア:

[(1, 30921975), (3, 10307325), (5, 6184395), (7, 4417425), (9, 3435775), (15, 2061465), (21, 1472475), (25, 1236879), (29, 1066275), (35, 883485), (45, 687155), (63, 490825), (75, 412293), (87, 355425), (105, 294495), (145, 213255), (175, 176697), (203, 152325), (225, 137431), (261, 118475), (315, 98165), (435, 71085), (525, 58899), (609, 50775), (677, 45675), (725, 42651), (1015, 30465), (1305, 23695), (1575, 19633), (1827, 16925), (2031, 15225), (2175, 14217), (3045, 10155), (3385, 9135), (4739, 6525), (5075, 6093)]