20107395

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{829}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 44282160

約数和(自身を除く): 24174765

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 63, 77, 99, 105, 147, 165, 231, 245, 315, 385, 441, 495, 539, 693, 735, 829, 1155, 1617, 2205, 2487, 2695, 3465, 4145, 4851, 5803, 7461, 8085, 9119, 12435, 17409, 24255, 27357, 29015, 37305, 40621, 45595, 52227, 63833, 82071, 87045, 121863, 136785, 191499, 203105, 261135, 319165, 365589, 410355, 446831, 574497, 609315, 957495, 1340493, 1827945, 2234155, 2872485, 4021479, 6702465, 20107395]

約数ペア:

[(1, 20107395), (3, 6702465), (5, 4021479), (7, 2872485), (9, 2234155), (11, 1827945), (15, 1340493), (21, 957495), (33, 609315), (35, 574497), (45, 446831), (49, 410355), (55, 365589), (63, 319165), (77, 261135), (99, 203105), (105, 191499), (147, 136785), (165, 121863), (231, 87045), (245, 82071), (315, 63833), (385, 52227), (441, 45595), (495, 40621), (539, 37305), (693, 29015), (735, 27357), (829, 24255), (1155, 17409), (1617, 12435), (2205, 9119), (2487, 8085), (2695, 7461), (3465, 5803), (4145, 4851)]