81990168

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13831}}^1$

素因数の和:13872

約数の個数: 64

約数和(自身を含む): 232377600

約数和(自身を除く): 150387432

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 5928, 13831, 27662, 41493, 55324, 82986, 110648, 165972, 179803, 262789, 331944, 359606, 525578, 539409, 719212, 788367, 1051156, 1078818, 1438424, 1576734, 2102312, 2157636, 3153468, 3416257, 4315272, 6306936, 6832514, 10248771, 13665028, 20497542, 27330056, 40995084, 81990168]

約数ペア:

[(1, 81990168), (2, 40995084), (3, 27330056), (4, 20497542), (6, 13665028), (8, 10248771), (12, 6832514), (13, 6306936), (19, 4315272), (24, 3416257), (26, 3153468), (38, 2157636), (39, 2102312), (52, 1576734), (57, 1438424), (76, 1078818), (78, 1051156), (104, 788367), (114, 719212), (152, 539409), (156, 525578), (228, 359606), (247, 331944), (312, 262789), (456, 179803), (494, 165972), (741, 110648), (988, 82986), (1482, 55324), (1976, 41493), (2964, 27662), (5928, 13831)]