18180135

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 33078240

約数和(自身を除く): 14898105

約数列:

[1, 3, 5, 9, 15, 37, 45, 61, 111, 179, 183, 185, 305, 333, 537, 549, 555, 895, 915, 1611, 1665, 2257, 2685, 2745, 6623, 6771, 8055, 10919, 11285, 19869, 20313, 32757, 33115, 33855, 54595, 59607, 98271, 99345, 101565, 163785, 298035, 404003, 491355, 1212009, 2020015, 3636027, 6060045, 18180135]

約数ペア:

[(1, 18180135), (3, 6060045), (5, 3636027), (9, 2020015), (15, 1212009), (37, 491355), (45, 404003), (61, 298035), (111, 163785), (179, 101565), (183, 99345), (185, 98271), (305, 59607), (333, 54595), (537, 33855), (549, 33115), (555, 32757), (895, 20313), (915, 19869), (1611, 11285), (1665, 10919), (2257, 8055), (2685, 6771), (2745, 6623)]