81997968

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:752

約数の個数: 80

約数和(自身を含む): 229388096

約数和(自身を除く): 147390128

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 331, 397, 624, 662, 794, 993, 1191, 1324, 1588, 1986, 2382, 2648, 3176, 3972, 4303, 4764, 5161, 5296, 6352, 7944, 8606, 9528, 10322, 12909, 15483, 15888, 17212, 19056, 20644, 25818, 30966, 34424, 41288, 51636, 61932, 68848, 82576, 103272, 123864, 131407, 206544, 247728, 262814, 394221, 525628, 788442, 1051256, 1576884, 1708291, 2102512, 3153768, 3416582, 5124873, 6307536, 6833164, 10249746, 13666328, 20499492, 27332656, 40998984, 81997968]

約数ペア:

[(1, 81997968), (2, 40998984), (3, 27332656), (4, 20499492), (6, 13666328), (8, 10249746), (12, 6833164), (13, 6307536), (16, 5124873), (24, 3416582), (26, 3153768), (39, 2102512), (48, 1708291), (52, 1576884), (78, 1051256), (104, 788442), (156, 525628), (208, 394221), (312, 262814), (331, 247728), (397, 206544), (624, 131407), (662, 123864), (794, 103272), (993, 82576), (1191, 68848), (1324, 61932), (1588, 51636), (1986, 41288), (2382, 34424), (2648, 30966), (3176, 25818), (3972, 20644), (4303, 19056), (4764, 17212), (5161, 15888), (5296, 15483), (6352, 12909), (7944, 10322), (8606, 9528)]