81831420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1117}}^1$

素因数の和:1180

約数の個数: 144

約数和(自身を含む): 278355168

約数和(自身を除く): 196523748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 37, 44, 45, 55, 60, 66, 74, 90, 99, 110, 111, 132, 148, 165, 180, 185, 198, 220, 222, 330, 333, 370, 396, 407, 444, 495, 555, 660, 666, 740, 814, 990, 1110, 1117, 1221, 1332, 1628, 1665, 1980, 2035, 2220, 2234, 2442, 3330, 3351, 3663, 4070, 4468, 4884, 5585, 6105, 6660, 6702, 7326, 8140, 10053, 11170, 12210, 12287, 13404, 14652, 16755, 18315, 20106, 22340, 24420, 24574, 33510, 36630, 36861, 40212, 41329, 49148, 50265, 61435, 67020, 73260, 73722, 82658, 100530, 110583, 122870, 123987, 147444, 165316, 184305, 201060, 206645, 221166, 245740, 247974, 368610, 371961, 413290, 442332, 454619, 495948, 552915, 619935, 737220, 743922, 826580, 909238, 1105830, 1239870, 1363857, 1487844, 1818476, 1859805, 2211660, 2273095, 2479740, 2727714, 3719610, 4091571, 4546190, 5455428, 6819285, 7439220, 8183142, 9092380, 13638570, 16366284, 20457855, 27277140, 40915710, 81831420]

約数ペア:

[(1, 81831420), (2, 40915710), (3, 27277140), (4, 20457855), (5, 16366284), (6, 13638570), (9, 9092380), (10, 8183142), (11, 7439220), (12, 6819285), (15, 5455428), (18, 4546190), (20, 4091571), (22, 3719610), (30, 2727714), (33, 2479740), (36, 2273095), (37, 2211660), (44, 1859805), (45, 1818476), (55, 1487844), (60, 1363857), (66, 1239870), (74, 1105830), (90, 909238), (99, 826580), (110, 743922), (111, 737220), (132, 619935), (148, 552915), (165, 495948), (180, 454619), (185, 442332), (198, 413290), (220, 371961), (222, 368610), (330, 247974), (333, 245740), (370, 221166), (396, 206645), (407, 201060), (444, 184305), (495, 165316), (555, 147444), (660, 123987), (666, 122870), (740, 110583), (814, 100530), (990, 82658), (1110, 73722), (1117, 73260), (1221, 67020), (1332, 61435), (1628, 50265), (1665, 49148), (1980, 41329), (2035, 40212), (2220, 36861), (2234, 36630), (2442, 33510), (3330, 24574), (3351, 24420), (3663, 22340), (4070, 20106), (4468, 18315), (4884, 16755), (5585, 14652), (6105, 13404), (6660, 12287), (6702, 12210), (7326, 11170), (8140, 10053)]