81853770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 202051584

約数和(自身を除く): 120197814

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 83, 142, 166, 213, 249, 355, 415, 426, 463, 498, 710, 830, 926, 1065, 1245, 1389, 2130, 2315, 2490, 2778, 4630, 5893, 6945, 11786, 13890, 17679, 29465, 32873, 35358, 38429, 58930, 65746, 76858, 88395, 98619, 115287, 164365, 176790, 192145, 197238, 230574, 328730, 384290, 493095, 576435, 986190, 1152870, 2728459, 5456918, 8185377, 13642295, 16370754, 27284590, 40926885, 81853770]

約数ペア:

[(1, 81853770), (2, 40926885), (3, 27284590), (5, 16370754), (6, 13642295), (10, 8185377), (15, 5456918), (30, 2728459), (71, 1152870), (83, 986190), (142, 576435), (166, 493095), (213, 384290), (249, 328730), (355, 230574), (415, 197238), (426, 192145), (463, 176790), (498, 164365), (710, 115287), (830, 98619), (926, 88395), (1065, 76858), (1245, 65746), (1389, 58930), (2130, 38429), (2315, 35358), (2490, 32873), (2778, 29465), (4630, 17679), (5893, 13890), (6945, 11786)]