20766435

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 37822464

約数和(自身を除く): 17056029

約数列:

[1, 3, 5, 15, 17, 31, 37, 51, 71, 85, 93, 111, 155, 185, 213, 255, 355, 465, 527, 555, 629, 1065, 1147, 1207, 1581, 1887, 2201, 2627, 2635, 3145, 3441, 3621, 5735, 6035, 6603, 7881, 7905, 9435, 11005, 13135, 17205, 18105, 19499, 33015, 37417, 39405, 44659, 58497, 81437, 97495, 112251, 133977, 187085, 223295, 244311, 292485, 407185, 561255, 669885, 1221555, 1384429, 4153287, 6922145, 20766435]

約数ペア:

[(1, 20766435), (3, 6922145), (5, 4153287), (15, 1384429), (17, 1221555), (31, 669885), (37, 561255), (51, 407185), (71, 292485), (85, 244311), (93, 223295), (111, 187085), (155, 133977), (185, 112251), (213, 97495), (255, 81437), (355, 58497), (465, 44659), (527, 39405), (555, 37417), (629, 33015), (1065, 19499), (1147, 18105), (1207, 17205), (1581, 13135), (1887, 11005), (2201, 9435), (2627, 7905), (2635, 7881), (3145, 6603), (3441, 6035), (3621, 5735)]