320483735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 491581440

約数和(自身を除く): 171097705

約数列:

[1, 5, 11, 13, 19, 31, 55, 65, 95, 143, 155, 209, 247, 341, 403, 589, 715, 761, 1045, 1235, 1705, 2015, 2717, 2945, 3805, 4433, 6479, 7657, 8371, 9893, 13585, 14459, 22165, 23591, 32395, 38285, 41855, 49465, 72295, 84227, 108823, 117955, 159049, 187967, 259501, 306683, 421135, 448229, 544115, 795245, 939835, 1297505, 1533415, 2067637, 2241145, 3373513, 4930519, 5826977, 10338185, 16867565, 24652595, 29134885, 64096747, 320483735]

約数ペア:

[(1, 320483735), (5, 64096747), (11, 29134885), (13, 24652595), (19, 16867565), (31, 10338185), (55, 5826977), (65, 4930519), (95, 3373513), (143, 2241145), (155, 2067637), (209, 1533415), (247, 1297505), (341, 939835), (403, 795245), (589, 544115), (715, 448229), (761, 421135), (1045, 306683), (1235, 259501), (1705, 187967), (2015, 159049), (2717, 117955), (2945, 108823), (3805, 84227), (4433, 72295), (6479, 49465), (7657, 41855), (8371, 38285), (9893, 32395), (13585, 23591), (14459, 22165)]