19957490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{541}}^1$

素因数の和:603

約数の個数: 64

約数和(自身を含む): 44955648

約数和(自身を除く): 24998158

約数列:

[1, 2, 5, 7, 10, 14, 17, 31, 34, 35, 62, 70, 85, 119, 155, 170, 217, 238, 310, 434, 527, 541, 595, 1054, 1082, 1085, 1190, 2170, 2635, 2705, 3689, 3787, 5270, 5410, 7378, 7574, 9197, 16771, 18394, 18445, 18935, 33542, 36890, 37870, 45985, 64379, 83855, 91970, 117397, 128758, 167710, 234794, 285107, 321895, 570214, 586985, 643790, 1173970, 1425535, 1995749, 2851070, 3991498, 9978745, 19957490]

約数ペア:

[(1, 19957490), (2, 9978745), (5, 3991498), (7, 2851070), (10, 1995749), (14, 1425535), (17, 1173970), (31, 643790), (34, 586985), (35, 570214), (62, 321895), (70, 285107), (85, 234794), (119, 167710), (155, 128758), (170, 117397), (217, 91970), (238, 83855), (310, 64379), (434, 45985), (527, 37870), (541, 36890), (595, 33542), (1054, 18935), (1082, 18445), (1085, 18394), (1190, 16771), (2170, 9197), (2635, 7574), (2705, 7378), (3689, 5410), (3787, 5270)]