81380268

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{39659}}^1$

素因数の和:39691

約数の個数: 48

約数和(自身を含む): 222096000

約数和(自身を除く): 140715732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 108, 114, 171, 228, 342, 513, 684, 1026, 2052, 39659, 79318, 118977, 158636, 237954, 356931, 475908, 713862, 753521, 1070793, 1427724, 1507042, 2141586, 2260563, 3014084, 4283172, 4521126, 6781689, 9042252, 13563378, 20345067, 27126756, 40690134, 81380268]

約数ペア:

[(1, 81380268), (2, 40690134), (3, 27126756), (4, 20345067), (6, 13563378), (9, 9042252), (12, 6781689), (18, 4521126), (19, 4283172), (27, 3014084), (36, 2260563), (38, 2141586), (54, 1507042), (57, 1427724), (76, 1070793), (108, 753521), (114, 713862), (171, 475908), (228, 356931), (342, 237954), (513, 158636), (684, 118977), (1026, 79318), (2052, 39659)]