1999619195

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{11447}}^1$

素因数の和:11520

約数の個数: 48

約数和(自身を含む): 3006885888

約数和(自身を除く): 1007266693

約数列:

[1, 5, 7, 23, 31, 35, 49, 115, 155, 161, 217, 245, 713, 805, 1085, 1127, 1519, 3565, 4991, 5635, 7595, 11447, 24955, 34937, 57235, 80129, 174685, 263281, 354857, 400645, 560903, 1316405, 1774285, 1842967, 2483999, 2804515, 8161711, 9214835, 12419995, 12900769, 17387993, 40808555, 57131977, 64503845, 86939965, 285659885, 399923839, 1999619195]

約数ペア:

[(1, 1999619195), (5, 399923839), (7, 285659885), (23, 86939965), (31, 64503845), (35, 57131977), (49, 40808555), (115, 17387993), (155, 12900769), (161, 12419995), (217, 9214835), (245, 8161711), (713, 2804515), (805, 2483999), (1085, 1842967), (1127, 1774285), (1519, 1316405), (3565, 560903), (4991, 400645), (5635, 354857), (7595, 263281), (11447, 174685), (24955, 80129), (34937, 57235)]