81801405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8377}}^1$

素因数の和:8426

約数の個数: 48

約数和(自身を含む): 167291904

約数和(自身を除く): 85490499

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 3255, 8377, 9765, 25131, 41885, 58639, 75393, 125655, 175917, 259687, 293195, 376965, 527751, 779061, 879585, 1298435, 1817809, 2337183, 2638755, 3895305, 5453427, 9089045, 11685915, 16360281, 27267135, 81801405]

約数ペア:

[(1, 81801405), (3, 27267135), (5, 16360281), (7, 11685915), (9, 9089045), (15, 5453427), (21, 3895305), (31, 2638755), (35, 2337183), (45, 1817809), (63, 1298435), (93, 879585), (105, 779061), (155, 527751), (217, 376965), (279, 293195), (315, 259687), (465, 175917), (651, 125655), (1085, 75393), (1395, 58639), (1953, 41885), (3255, 25131), (8377, 9765)]