81895245

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 142490880

約数和(自身を除く): 60595635

約数列:

[1, 3, 5, 15, 37, 41, 59, 61, 111, 123, 177, 183, 185, 205, 295, 305, 555, 615, 885, 915, 1517, 2183, 2257, 2419, 2501, 3599, 4551, 6549, 6771, 7257, 7503, 7585, 10797, 10915, 11285, 12095, 12505, 17995, 22755, 32745, 33855, 36285, 37515, 53985, 89503, 92537, 133163, 147559, 268509, 277611, 399489, 442677, 447515, 462685, 665815, 737795, 1342545, 1388055, 1997445, 2213385, 5459683, 16379049, 27298415, 81895245]

約数ペア:

[(1, 81895245), (3, 27298415), (5, 16379049), (15, 5459683), (37, 2213385), (41, 1997445), (59, 1388055), (61, 1342545), (111, 737795), (123, 665815), (177, 462685), (183, 447515), (185, 442677), (205, 399489), (295, 277611), (305, 268509), (555, 147559), (615, 133163), (885, 92537), (915, 89503), (1517, 53985), (2183, 37515), (2257, 36285), (2419, 33855), (2501, 32745), (3599, 22755), (4551, 17995), (6549, 12505), (6771, 12095), (7257, 11285), (7503, 10915), (7585, 10797)]