81316755

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{607}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 152705280

約数和(自身を除く): 71388525

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 229, 585, 607, 687, 1145, 1821, 2061, 2977, 3035, 3435, 5463, 7891, 8931, 9105, 10305, 14885, 23673, 26793, 27315, 39455, 44655, 71019, 118365, 133965, 139003, 355095, 417009, 695015, 1251027, 1807039, 2085045, 5421117, 6255135, 9035195, 16263351, 27105585, 81316755]

約数ペア:

[(1, 81316755), (3, 27105585), (5, 16263351), (9, 9035195), (13, 6255135), (15, 5421117), (39, 2085045), (45, 1807039), (65, 1251027), (117, 695015), (195, 417009), (229, 355095), (585, 139003), (607, 133965), (687, 118365), (1145, 71019), (1821, 44655), (2061, 39455), (2977, 27315), (3035, 26793), (3435, 23673), (5463, 14885), (7891, 10305), (8931, 9105)]