205910985

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{433}}^1\times {\mathrm{647}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 384725376

約数和(自身を除く): 178814391

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 433, 647, 735, 1299, 1941, 2165, 3031, 3235, 4529, 6495, 9093, 9705, 13587, 15155, 21217, 22645, 31703, 45465, 63651, 67935, 95109, 106085, 158515, 280151, 318255, 475545, 840453, 1400755, 1961057, 4202265, 5883171, 9805285, 13727399, 29415855, 41182197, 68636995, 205910985]

約数ペア:

[(1, 205910985), (3, 68636995), (5, 41182197), (7, 29415855), (15, 13727399), (21, 9805285), (35, 5883171), (49, 4202265), (105, 1961057), (147, 1400755), (245, 840453), (433, 475545), (647, 318255), (735, 280151), (1299, 158515), (1941, 106085), (2165, 95109), (3031, 67935), (3235, 63651), (4529, 45465), (6495, 31703), (9093, 22645), (9705, 21217), (13587, 15155)]