20474210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{547}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 39061440

約数和(自身を除く): 18587230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 197, 394, 547, 985, 1094, 1970, 2735, 3743, 5470, 7486, 10393, 18715, 20786, 37430, 51965, 103930, 107759, 215518, 538795, 1077590, 2047421, 4094842, 10237105, 20474210]

約数ペア:

[(1, 20474210), (2, 10237105), (5, 4094842), (10, 2047421), (19, 1077590), (38, 538795), (95, 215518), (190, 107759), (197, 103930), (394, 51965), (547, 37430), (985, 20786), (1094, 18715), (1970, 10393), (2735, 7486), (3743, 5470)]