20542054

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 34312320

約数和(自身を除く): 13770266

約数列:

[1, 2, 13, 26, 73, 79, 137, 146, 158, 274, 949, 1027, 1781, 1898, 2054, 3562, 5767, 10001, 10823, 11534, 20002, 21646, 74971, 130013, 140699, 149942, 260026, 281398, 790079, 1580158, 10271027, 20542054]

約数ペア:

[(1, 20542054), (2, 10271027), (13, 1580158), (26, 790079), (73, 281398), (79, 260026), (137, 149942), (146, 140699), (158, 130013), (274, 74971), (949, 21646), (1027, 20002), (1781, 11534), (1898, 10823), (2054, 10001), (3562, 5767)]