81469836

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2861}}^1$

素因数の和:2991

約数の個数: 72

約数和(自身を含む): 237523104

約数和(自身を除く): 156053268

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 113, 126, 226, 252, 339, 452, 678, 791, 1017, 1356, 1582, 2034, 2373, 2861, 3164, 4068, 4746, 5722, 7119, 8583, 9492, 11444, 14238, 17166, 20027, 25749, 28476, 34332, 40054, 51498, 60081, 80108, 102996, 120162, 180243, 240324, 323293, 360486, 646586, 720972, 969879, 1293172, 1939758, 2263051, 2909637, 3879516, 4526102, 5819274, 6789153, 9052204, 11638548, 13578306, 20367459, 27156612, 40734918, 81469836]

約数ペア:

[(1, 81469836), (2, 40734918), (3, 27156612), (4, 20367459), (6, 13578306), (7, 11638548), (9, 9052204), (12, 6789153), (14, 5819274), (18, 4526102), (21, 3879516), (28, 2909637), (36, 2263051), (42, 1939758), (63, 1293172), (84, 969879), (113, 720972), (126, 646586), (226, 360486), (252, 323293), (339, 240324), (452, 180243), (678, 120162), (791, 102996), (1017, 80108), (1356, 60081), (1582, 51498), (2034, 40054), (2373, 34332), (2861, 28476), (3164, 25749), (4068, 20027), (4746, 17166), (5722, 14238), (7119, 11444), (8583, 9492)]