19915952

素因数分解:

$2^4\times 7^3\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 80

約数和(自身を含む): 47616000

約数和(自身を除く): 27700048

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 49, 56, 76, 98, 112, 133, 152, 191, 196, 266, 304, 343, 382, 392, 532, 686, 764, 784, 931, 1064, 1337, 1372, 1528, 1862, 2128, 2674, 2744, 3056, 3629, 3724, 5348, 5488, 6517, 7258, 7448, 9359, 10696, 13034, 14516, 14896, 18718, 21392, 25403, 26068, 29032, 37436, 50806, 52136, 58064, 65513, 74872, 101612, 104272, 131026, 149744, 177821, 203224, 262052, 355642, 406448, 524104, 711284, 1048208, 1244747, 1422568, 2489494, 2845136, 4978988, 9957976, 19915952]

約数ペア:

[(1, 19915952), (2, 9957976), (4, 4978988), (7, 2845136), (8, 2489494), (14, 1422568), (16, 1244747), (19, 1048208), (28, 711284), (38, 524104), (49, 406448), (56, 355642), (76, 262052), (98, 203224), (112, 177821), (133, 149744), (152, 131026), (191, 104272), (196, 101612), (266, 74872), (304, 65513), (343, 58064), (382, 52136), (392, 50806), (532, 37436), (686, 29032), (764, 26068), (784, 25403), (931, 21392), (1064, 18718), (1337, 14896), (1372, 14516), (1528, 13034), (1862, 10696), (2128, 9359), (2674, 7448), (2744, 7258), (3056, 6517), (3629, 5488), (3724, 5348)]