218974886

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 391372800

約数和(自身を除く): 172397914

約数列:

[1, 2, 13, 19, 26, 31, 38, 62, 79, 158, 181, 247, 362, 403, 494, 589, 806, 1027, 1178, 1501, 2054, 2353, 2449, 3002, 3439, 4706, 4898, 5611, 6878, 7657, 11222, 14299, 15314, 19513, 28598, 31837, 39026, 44707, 46531, 63674, 72943, 89414, 93062, 106609, 145886, 185887, 213218, 271681, 371774, 443269, 543362, 604903, 886538, 1209806, 1385917, 2771834, 3531853, 5762497, 7063706, 8422111, 11524994, 16844222, 109487443, 218974886]

約数ペア:

[(1, 218974886), (2, 109487443), (13, 16844222), (19, 11524994), (26, 8422111), (31, 7063706), (38, 5762497), (62, 3531853), (79, 2771834), (158, 1385917), (181, 1209806), (247, 886538), (362, 604903), (403, 543362), (494, 443269), (589, 371774), (806, 271681), (1027, 213218), (1178, 185887), (1501, 145886), (2054, 106609), (2353, 93062), (2449, 89414), (3002, 72943), (3439, 63674), (4706, 46531), (4898, 44707), (5611, 39026), (6878, 31837), (7657, 28598), (11222, 19513), (14299, 15314)]