18072340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 27650540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 71, 89, 110, 130, 142, 143, 178, 220, 260, 284, 286, 355, 356, 445, 572, 710, 715, 781, 890, 923, 979, 1157, 1420, 1430, 1562, 1780, 1846, 1958, 2314, 2860, 3124, 3692, 3905, 3916, 4615, 4628, 4895, 5785, 6319, 7810, 9230, 9790, 10153, 11570, 12638, 12727, 15620, 18460, 19580, 20306, 23140, 25276, 25454, 31595, 40612, 50765, 50908, 63190, 63635, 69509, 82147, 101530, 126380, 127270, 139018, 164294, 203060, 254540, 278036, 328588, 347545, 410735, 695090, 821470, 903617, 1390180, 1642940, 1807234, 3614468, 4518085, 9036170, 18072340]

約数ペア:

[(1, 18072340), (2, 9036170), (4, 4518085), (5, 3614468), (10, 1807234), (11, 1642940), (13, 1390180), (20, 903617), (22, 821470), (26, 695090), (44, 410735), (52, 347545), (55, 328588), (65, 278036), (71, 254540), (89, 203060), (110, 164294), (130, 139018), (142, 127270), (143, 126380), (178, 101530), (220, 82147), (260, 69509), (284, 63635), (286, 63190), (355, 50908), (356, 50765), (445, 40612), (572, 31595), (710, 25454), (715, 25276), (781, 23140), (890, 20306), (923, 19580), (979, 18460), (1157, 15620), (1420, 12727), (1430, 12638), (1562, 11570), (1780, 10153), (1846, 9790), (1958, 9230), (2314, 7810), (2860, 6319), (3124, 5785), (3692, 4895), (3905, 4628), (3916, 4615)]