11988998420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{434699}}^1$

素因数の和:434912

約数の個数: 48

約数和(自身を含む): 28919721600

約数和(自身を除く): 16930723180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6895, 13790, 27580, 434699, 869398, 1738796, 2173495, 3042893, 4346990, 6085786, 8693980, 12171572, 15214465, 30428930, 60857860, 85635703, 171271406, 342542812, 428178515, 599449921, 856357030, 1198899842, 1712714060, 2397799684, 2997249605, 5994499210, 11988998420]

約数ペア:

[(1, 11988998420), (2, 5994499210), (4, 2997249605), (5, 2397799684), (7, 1712714060), (10, 1198899842), (14, 856357030), (20, 599449921), (28, 428178515), (35, 342542812), (70, 171271406), (140, 85635703), (197, 60857860), (394, 30428930), (788, 15214465), (985, 12171572), (1379, 8693980), (1970, 6085786), (2758, 4346990), (3940, 3042893), (5516, 2173495), (6895, 1738796), (13790, 869398), (27580, 434699)]