19691210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 25098550

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 107, 110, 154, 214, 239, 385, 478, 535, 749, 770, 1070, 1177, 1195, 1498, 1673, 2354, 2390, 2629, 3346, 3745, 5258, 5885, 7490, 8239, 8365, 11770, 13145, 16478, 16730, 18403, 25573, 26290, 36806, 41195, 51146, 82390, 92015, 127865, 179011, 184030, 255730, 281303, 358022, 562606, 895055, 1406515, 1790110, 1969121, 2813030, 3938242, 9845605, 19691210]

約数ペア:

[(1, 19691210), (2, 9845605), (5, 3938242), (7, 2813030), (10, 1969121), (11, 1790110), (14, 1406515), (22, 895055), (35, 562606), (55, 358022), (70, 281303), (77, 255730), (107, 184030), (110, 179011), (154, 127865), (214, 92015), (239, 82390), (385, 51146), (478, 41195), (535, 36806), (749, 26290), (770, 25573), (1070, 18403), (1177, 16730), (1195, 16478), (1498, 13145), (1673, 11770), (2354, 8365), (2390, 8239), (2629, 7490), (3346, 5885), (3745, 5258)]