64497780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18859}}^1$

素因数の和:18893

約数の個数: 72

約数和(自身を含む): 205951200

約数和(自身を除く): 141453420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 18859, 37718, 56577, 75436, 94295, 113154, 169731, 188590, 226308, 282885, 339462, 358321, 377180, 565770, 678924, 716642, 848655, 1074963, 1131540, 1433284, 1697310, 1791605, 2149926, 3224889, 3394620, 3583210, 4299852, 5374815, 6449778, 7166420, 10749630, 12899556, 16124445, 21499260, 32248890, 64497780]

約数ペア:

[(1, 64497780), (2, 32248890), (3, 21499260), (4, 16124445), (5, 12899556), (6, 10749630), (9, 7166420), (10, 6449778), (12, 5374815), (15, 4299852), (18, 3583210), (19, 3394620), (20, 3224889), (30, 2149926), (36, 1791605), (38, 1697310), (45, 1433284), (57, 1131540), (60, 1074963), (76, 848655), (90, 716642), (95, 678924), (114, 565770), (171, 377180), (180, 358321), (190, 339462), (228, 282885), (285, 226308), (342, 188590), (380, 169731), (570, 113154), (684, 94295), (855, 75436), (1140, 56577), (1710, 37718), (3420, 18859)]