19977914530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1289}}^1\times {\mathrm{221411}}^1$

素因数の和:222714

約数の個数: 32

約数和(自身を含む): 41129493120

約数和(自身を除く): 21151578590

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1289, 2578, 6445, 9023, 12890, 18046, 45115, 90230, 221411, 442822, 1107055, 1549877, 2214110, 3099754, 7749385, 15498770, 285398779, 570797558, 1426993895, 1997791453, 2853987790, 3995582906, 9988957265, 19977914530]

約数ペア:

[(1, 19977914530), (2, 9988957265), (5, 3995582906), (7, 2853987790), (10, 1997791453), (14, 1426993895), (35, 570797558), (70, 285398779), (1289, 15498770), (2578, 7749385), (6445, 3099754), (9023, 2214110), (12890, 1549877), (18046, 1107055), (45115, 442822), (90230, 221411)]