19203880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:970

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 28074200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 911, 1054, 1240, 1822, 2108, 2635, 3644, 4216, 4555, 5270, 7288, 9110, 10540, 15487, 18220, 21080, 28241, 30974, 36440, 56482, 61948, 77435, 112964, 123896, 141205, 154870, 225928, 282410, 309740, 480097, 564820, 619480, 960194, 1129640, 1920388, 2400485, 3840776, 4800970, 9601940, 19203880]

約数ペア:

[(1, 19203880), (2, 9601940), (4, 4800970), (5, 3840776), (8, 2400485), (10, 1920388), (17, 1129640), (20, 960194), (31, 619480), (34, 564820), (40, 480097), (62, 309740), (68, 282410), (85, 225928), (124, 154870), (136, 141205), (155, 123896), (170, 112964), (248, 77435), (310, 61948), (340, 56482), (527, 36440), (620, 30974), (680, 28241), (911, 21080), (1054, 18220), (1240, 15487), (1822, 10540), (2108, 9110), (2635, 7288), (3644, 5270), (4216, 4555)]