20747392

素因数分解:

$2^7\times {\mathrm{19}}^2\times {\mathrm{449}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 43719750

約数和(自身を除く): 22972358

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 361, 449, 608, 722, 898, 1216, 1444, 1796, 2432, 2888, 3592, 5776, 7184, 8531, 11552, 14368, 17062, 23104, 28736, 34124, 46208, 57472, 68248, 136496, 162089, 272992, 324178, 545984, 648356, 1091968, 1296712, 2593424, 5186848, 10373696, 20747392]

約数ペア:

[(1, 20747392), (2, 10373696), (4, 5186848), (8, 2593424), (16, 1296712), (19, 1091968), (32, 648356), (38, 545984), (64, 324178), (76, 272992), (128, 162089), (152, 136496), (304, 68248), (361, 57472), (449, 46208), (608, 34124), (722, 28736), (898, 23104), (1216, 17062), (1444, 14368), (1796, 11552), (2432, 8531), (2888, 7184), (3592, 5776)]