16400020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9011}}^1$

素因数の和:9040

約数の個数: 48

約数和(自身を含む): 42392448

約数和(自身を除く): 25992428

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 9011, 18022, 36044, 45055, 63077, 90110, 117143, 126154, 180220, 234286, 252308, 315385, 468572, 585715, 630770, 820001, 1171430, 1261540, 1640002, 2342860, 3280004, 4100005, 8200010, 16400020]

約数ペア:

[(1, 16400020), (2, 8200010), (4, 4100005), (5, 3280004), (7, 2342860), (10, 1640002), (13, 1261540), (14, 1171430), (20, 820001), (26, 630770), (28, 585715), (35, 468572), (52, 315385), (65, 252308), (70, 234286), (91, 180220), (130, 126154), (140, 117143), (182, 90110), (260, 63077), (364, 45055), (455, 36044), (910, 18022), (1820, 9011)]