19175860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{863}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 44416512

約数和(自身を除く): 25240652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 863, 1010, 1111, 1726, 2020, 2222, 3452, 4315, 4444, 5555, 8630, 9493, 11110, 17260, 18986, 22220, 37972, 47465, 87163, 94930, 174326, 189860, 348652, 435815, 871630, 958793, 1743260, 1917586, 3835172, 4793965, 9587930, 19175860]

約数ペア:

[(1, 19175860), (2, 9587930), (4, 4793965), (5, 3835172), (10, 1917586), (11, 1743260), (20, 958793), (22, 871630), (44, 435815), (55, 348652), (101, 189860), (110, 174326), (202, 94930), (220, 87163), (404, 47465), (505, 37972), (863, 22220), (1010, 18986), (1111, 17260), (1726, 11110), (2020, 9493), (2222, 8630), (3452, 5555), (4315, 4444)]