28920430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 68802048

約数和(自身を除く): 39881618

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 71, 77, 110, 115, 142, 154, 161, 230, 253, 322, 355, 385, 497, 506, 529, 710, 770, 781, 805, 994, 1058, 1265, 1562, 1610, 1633, 1771, 2485, 2530, 2645, 3266, 3542, 3703, 3905, 4970, 5290, 5467, 5819, 7406, 7810, 8165, 8855, 10934, 11431, 11638, 16330, 17710, 17963, 18515, 22862, 27335, 29095, 35926, 37030, 37559, 40733, 54670, 57155, 58190, 75118, 81466, 89815, 114310, 125741, 179630, 187795, 203665, 251482, 262913, 375590, 407330, 413149, 525826, 628705, 826298, 1257410, 1314565, 2065745, 2629130, 2892043, 4131490, 5784086, 14460215, 28920430]

約数ペア:

[(1, 28920430), (2, 14460215), (5, 5784086), (7, 4131490), (10, 2892043), (11, 2629130), (14, 2065745), (22, 1314565), (23, 1257410), (35, 826298), (46, 628705), (55, 525826), (70, 413149), (71, 407330), (77, 375590), (110, 262913), (115, 251482), (142, 203665), (154, 187795), (161, 179630), (230, 125741), (253, 114310), (322, 89815), (355, 81466), (385, 75118), (497, 58190), (506, 57155), (529, 54670), (710, 40733), (770, 37559), (781, 37030), (805, 35926), (994, 29095), (1058, 27335), (1265, 22862), (1562, 18515), (1610, 17963), (1633, 17710), (1771, 16330), (2485, 11638), (2530, 11431), (2645, 10934), (3266, 8855), (3542, 8165), (3703, 7810), (3905, 7406), (4970, 5819), (5290, 5467)]