1818995220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1443647}}^1$

素因数の和:1443669

約数の個数: 72

約数和(自身を含む): 6305854464

約数和(自身を除く): 4486859244

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1443647, 2887294, 4330941, 5774588, 7218235, 8661882, 10105529, 12992823, 14436470, 17323764, 20211058, 21654705, 25985646, 28872940, 30316587, 40422116, 43309410, 50527645, 51971292, 60633174, 64964115, 86618820, 90949761, 101055290, 121266348, 129928230, 151582935, 181899522, 202110580, 259856460, 303165870, 363799044, 454748805, 606331740, 909497610, 1818995220]

約数ペア:

[(1, 1818995220), (2, 909497610), (3, 606331740), (4, 454748805), (5, 363799044), (6, 303165870), (7, 259856460), (9, 202110580), (10, 181899522), (12, 151582935), (14, 129928230), (15, 121266348), (18, 101055290), (20, 90949761), (21, 86618820), (28, 64964115), (30, 60633174), (35, 51971292), (36, 50527645), (42, 43309410), (45, 40422116), (60, 30316587), (63, 28872940), (70, 25985646), (84, 21654705), (90, 20211058), (105, 17323764), (126, 14436470), (140, 12992823), (180, 10105529), (210, 8661882), (252, 7218235), (315, 5774588), (420, 4330941), (630, 2887294), (1260, 1443647)]