19959170

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^2$

素因数の和:85

約数の個数: 96

約数和(自身を含む): 47779200

約数和(自身を除く): 27820030

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 49, 55, 70, 77, 98, 110, 115, 154, 161, 230, 245, 253, 322, 343, 385, 490, 506, 529, 539, 686, 770, 805, 1058, 1078, 1127, 1265, 1610, 1715, 1771, 2254, 2530, 2645, 2695, 3430, 3542, 3703, 3773, 5290, 5390, 5635, 5819, 7406, 7546, 7889, 8855, 11270, 11638, 12397, 15778, 17710, 18515, 18865, 24794, 25921, 29095, 37030, 37730, 39445, 40733, 51842, 58190, 61985, 78890, 81466, 86779, 123970, 129605, 173558, 181447, 203665, 259210, 285131, 362894, 407330, 433895, 570262, 867790, 907235, 1425655, 1814470, 1995917, 2851310, 3991834, 9979585, 19959170]

約数ペア:

[(1, 19959170), (2, 9979585), (5, 3991834), (7, 2851310), (10, 1995917), (11, 1814470), (14, 1425655), (22, 907235), (23, 867790), (35, 570262), (46, 433895), (49, 407330), (55, 362894), (70, 285131), (77, 259210), (98, 203665), (110, 181447), (115, 173558), (154, 129605), (161, 123970), (230, 86779), (245, 81466), (253, 78890), (322, 61985), (343, 58190), (385, 51842), (490, 40733), (506, 39445), (529, 37730), (539, 37030), (686, 29095), (770, 25921), (805, 24794), (1058, 18865), (1078, 18515), (1127, 17710), (1265, 15778), (1610, 12397), (1715, 11638), (1771, 11270), (2254, 8855), (2530, 7889), (2645, 7546), (2695, 7406), (3430, 5819), (3542, 5635), (3703, 5390), (3773, 5290)]