18781290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 54317952

約数和(自身を除く): 35536662

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 61, 66, 90, 99, 110, 122, 165, 183, 198, 305, 311, 330, 366, 495, 549, 610, 622, 671, 915, 933, 990, 1098, 1342, 1555, 1830, 1866, 2013, 2745, 2799, 3110, 3355, 3421, 4026, 4665, 5490, 5598, 6039, 6710, 6842, 9330, 10065, 10263, 12078, 13995, 17105, 18971, 20130, 20526, 27990, 30195, 30789, 34210, 37942, 51315, 56913, 60390, 61578, 94855, 102630, 113826, 153945, 170739, 189710, 208681, 284565, 307890, 341478, 417362, 569130, 626043, 853695, 1043405, 1252086, 1707390, 1878129, 2086810, 3130215, 3756258, 6260430, 9390645, 18781290]

約数ペア:

[(1, 18781290), (2, 9390645), (3, 6260430), (5, 3756258), (6, 3130215), (9, 2086810), (10, 1878129), (11, 1707390), (15, 1252086), (18, 1043405), (22, 853695), (30, 626043), (33, 569130), (45, 417362), (55, 341478), (61, 307890), (66, 284565), (90, 208681), (99, 189710), (110, 170739), (122, 153945), (165, 113826), (183, 102630), (198, 94855), (305, 61578), (311, 60390), (330, 56913), (366, 51315), (495, 37942), (549, 34210), (610, 30789), (622, 30195), (671, 27990), (915, 20526), (933, 20130), (990, 18971), (1098, 17105), (1342, 13995), (1555, 12078), (1830, 10263), (1866, 10065), (2013, 9330), (2745, 6842), (2799, 6710), (3110, 6039), (3355, 5598), (3421, 5490), (4026, 4665)]