78855980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13099}}^1$

素因数の和:13158

約数の個数: 48

約数和(自身を含む): 193670400

約数和(自身を除く): 114814420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 13099, 26198, 52396, 65495, 91693, 130990, 183386, 261980, 366772, 458465, 563257, 916930, 1126514, 1833860, 2253028, 2816285, 3942799, 5632570, 7885598, 11265140, 15771196, 19713995, 39427990, 78855980]

約数ペア:

[(1, 78855980), (2, 39427990), (4, 19713995), (5, 15771196), (7, 11265140), (10, 7885598), (14, 5632570), (20, 3942799), (28, 2816285), (35, 2253028), (43, 1833860), (70, 1126514), (86, 916930), (140, 563257), (172, 458465), (215, 366772), (301, 261980), (430, 183386), (602, 130990), (860, 91693), (1204, 65495), (1505, 52396), (3010, 26198), (6020, 13099)]