28008945

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 28600335

約数列:

[1, 3, 5, 9, 15, 17, 19, 41, 45, 47, 51, 57, 85, 95, 123, 141, 153, 171, 205, 235, 255, 285, 323, 369, 423, 615, 697, 705, 765, 779, 799, 855, 893, 969, 1615, 1845, 1927, 2091, 2115, 2337, 2397, 2679, 2907, 3485, 3895, 3995, 4465, 4845, 5781, 6273, 7011, 7191, 8037, 9635, 10455, 11685, 11985, 13243, 13395, 14535, 15181, 17343, 28905, 31365, 32759, 35055, 35955, 36613, 39729, 40185, 45543, 66215, 75905, 86715, 98277, 109839, 119187, 136629, 163795, 183065, 198645, 227715, 294831, 329517, 491385, 549195, 595935, 622421, 683145, 1474155, 1647585, 1867263, 3112105, 5601789, 9336315, 28008945]

約数ペア:

[(1, 28008945), (3, 9336315), (5, 5601789), (9, 3112105), (15, 1867263), (17, 1647585), (19, 1474155), (41, 683145), (45, 622421), (47, 595935), (51, 549195), (57, 491385), (85, 329517), (95, 294831), (123, 227715), (141, 198645), (153, 183065), (171, 163795), (205, 136629), (235, 119187), (255, 109839), (285, 98277), (323, 86715), (369, 75905), (423, 66215), (615, 45543), (697, 40185), (705, 39729), (765, 36613), (779, 35955), (799, 35055), (855, 32759), (893, 31365), (969, 28905), (1615, 17343), (1845, 15181), (1927, 14535), (2091, 13395), (2115, 13243), (2337, 11985), (2397, 11685), (2679, 10455), (2907, 9635), (3485, 8037), (3895, 7191), (3995, 7011), (4465, 6273), (4845, 5781)]