20170671856

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{161977}}^1$

素因数の和:162209

約数の個数: 40

約数和(自身を含む): 40210714544

約数和(自身を除く): 20040042688

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 181, 344, 362, 688, 724, 1448, 2896, 7783, 15566, 31132, 62264, 124528, 161977, 323954, 647908, 1295816, 2591632, 6965011, 13930022, 27860044, 29317837, 55720088, 58635674, 111440176, 117271348, 234542696, 469085392, 1260666991, 2521333982, 5042667964, 10085335928, 20170671856]

約数ペア:

[(1, 20170671856), (2, 10085335928), (4, 5042667964), (8, 2521333982), (16, 1260666991), (43, 469085392), (86, 234542696), (172, 117271348), (181, 111440176), (344, 58635674), (362, 55720088), (688, 29317837), (724, 27860044), (1448, 13930022), (2896, 6965011), (7783, 2591632), (15566, 1295816), (31132, 647908), (62264, 323954), (124528, 161977)]