81417690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1997}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 218661120

約数和(自身を除く): 137243430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 151, 270, 302, 453, 755, 906, 1359, 1510, 1997, 2265, 2718, 3994, 4077, 4530, 5991, 6795, 8154, 9985, 11982, 13590, 17973, 19970, 20385, 29955, 35946, 40770, 53919, 59910, 89865, 107838, 179730, 269595, 301547, 539190, 603094, 904641, 1507735, 1809282, 2713923, 3015470, 4523205, 5427846, 8141769, 9046410, 13569615, 16283538, 27139230, 40708845, 81417690]

約数ペア:

[(1, 81417690), (2, 40708845), (3, 27139230), (5, 16283538), (6, 13569615), (9, 9046410), (10, 8141769), (15, 5427846), (18, 4523205), (27, 3015470), (30, 2713923), (45, 1809282), (54, 1507735), (90, 904641), (135, 603094), (151, 539190), (270, 301547), (302, 269595), (453, 179730), (755, 107838), (906, 89865), (1359, 59910), (1510, 53919), (1997, 40770), (2265, 35946), (2718, 29955), (3994, 20385), (4077, 19970), (4530, 17973), (5991, 13590), (6795, 11982), (8154, 9985)]