20111272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 43243200

約数和(自身を除く): 23131928

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 43, 68, 76, 86, 136, 152, 172, 181, 323, 344, 362, 646, 724, 731, 817, 1292, 1448, 1462, 1634, 2584, 2924, 3077, 3268, 3439, 5848, 6154, 6536, 6878, 7783, 12308, 13756, 13889, 15566, 24616, 27512, 27778, 31132, 55556, 58463, 62264, 111112, 116926, 132311, 147877, 233852, 264622, 295754, 467704, 529244, 591508, 1058488, 1183016, 2513909, 5027818, 10055636, 20111272]

約数ペア:

[(1, 20111272), (2, 10055636), (4, 5027818), (8, 2513909), (17, 1183016), (19, 1058488), (34, 591508), (38, 529244), (43, 467704), (68, 295754), (76, 264622), (86, 233852), (136, 147877), (152, 132311), (172, 116926), (181, 111112), (323, 62264), (344, 58463), (362, 55556), (646, 31132), (724, 27778), (731, 27512), (817, 24616), (1292, 15566), (1448, 13889), (1462, 13756), (1634, 12308), (2584, 7783), (2924, 6878), (3077, 6536), (3268, 6154), (3439, 5848)]