15933220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 34771968

約数和(自身を除く): 18838748

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 191, 194, 215, 382, 388, 430, 485, 764, 860, 955, 970, 1910, 1940, 3820, 4171, 8213, 8342, 16426, 16684, 18527, 20855, 32852, 37054, 41065, 41710, 74108, 82130, 83420, 92635, 164260, 185270, 370540, 796661, 1593322, 3186644, 3983305, 7966610, 15933220]

約数ペア:

[(1, 15933220), (2, 7966610), (4, 3983305), (5, 3186644), (10, 1593322), (20, 796661), (43, 370540), (86, 185270), (97, 164260), (172, 92635), (191, 83420), (194, 82130), (215, 74108), (382, 41710), (388, 41065), (430, 37054), (485, 32852), (764, 20855), (860, 18527), (955, 16684), (970, 16426), (1910, 8342), (1940, 8213), (3820, 4171)]